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₹ Category

Financial Calculators

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General Loan Calculator

Solve flexible fixed-rate loan payments, supported principal, or payoff term with fees and a balloon payment.

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Loan Payment Calculator

Quickly estimate a fixed-rate loan payment for monthly, biweekly, weekly, quarterly, or annual payments.

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Loan Amortization Calculator

Build payment-by-payment loan schedules and measure the effect of recurring and one-time extra payments.

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Loan Payoff Calculator

Estimate payoff time from a proposed payment or the payment required for a target payoff period.

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Mortgage Payment Calculator

Estimate principal, interest, and optional recurring housing costs for a focused mortgage payment.

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Mortgage Amortization Calculator

Create detailed mortgage payment and annual schedules with optional extra payments.

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Mortgage Extra Payment Calculator

Compare mortgage payoff time and interest with recurring, annual, and lump-sum extra payments.

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Mortgage Payoff Calculator

Estimate a mortgage payoff date, required target payment, time saved, and remaining interest.

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Mortgage Refinance Calculator

Compare current and proposed mortgage payments, total costs, and refinance break-even time.

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Mortgage Affordability Calculator

Estimate a home-buying budget from editable income, debt, housing-cost, and ratio assumptions.

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Down Payment Calculator

Convert down-payment amount and percentage, estimate maximum price, or plan a savings goal.

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Closing Cost Calculator

Add editable fixed or percentage closing costs, credits, financed costs, and cash needed at closing.

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Home Equity Loan Calculator

Estimate available home equity, resulting CLTV, fixed payment, interest, and fees.

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HELOC Payment Calculator

Compare HELOC draw-period and repayment-period payments, interest, fees, and rate sensitivity.

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Reverse Mortgage Calculator

Educationally project user-entered reverse-mortgage proceeds, future balance, home value, and remaining equity.

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VA Loan Calculator

Estimate a U.S. VA-style loan payment from an editable funding fee and housing-cost assumptions.

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Investment Calculator

Project an investment with recurring contributions, fees, inflation, and simplified tax.

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ROI Calculator

Calculate gain, loss, ROI, and annualized ROI using a clearly stated cost basis.

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IRR Calculator

Solve periodic internal rate of return with bounded numerical search and failure warnings.

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XIRR Calculator

Calculate annualized return for irregular dated cash flows using Actual/365.

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Net Present Value Calculator

Discount periodic cash flows, an initial investment, and terminal value to time zero.

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Annuity Calculator

Calculate equal-payment annuity present value, future value, payment, or term.

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Annuity Payout Calculator

Estimate annuity income, duration, fees, growth, and depletion under editable assumptions.

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Bond Calculator

Calculate bond price, coupon cash flows, current yield, YTM, and premium or discount.

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Yield to Maturity Calculator

Solve bond yield to maturity and compare it with current yield and an approximation.

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FIRE Calculator

Estimate an editable financial-independence target and years to reach it.

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Retirement Savings Calculator

Project retirement accumulation, fees, inflation, and an optional target gap.

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Retirement Income Calculator

Estimate level or inflation-growing income from retirement savings over an entered period.

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Retirement Withdrawal Calculator

Project fixed, percentage, or inflation-adjusted withdrawals and depletion.

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Pension Calculator

Estimate a generic defined-benefit pension from fully editable plan inputs.

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401(k) Calculator

Project 401(k) employee contributions, employer match, fees, and 2026 limit warnings.

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Roth IRA Calculator

Project Roth IRA growth with 2026 contribution and optional MAGI phase-out context.

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Traditional IRA Calculator

Project Traditional IRA pre-tax growth and a simplified user-entered after-tax comparison.

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Social Security Benefits Calculator

Estimate U.S. retired-worker benefits from an SSA statement amount or 2026 AIME bend points.

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FERS Retirement Calculator

Estimate a U.S. FERS basic annuity using current OPM computation formulas.

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Military Retirement Calculator

Estimate U.S. Final Pay, High-36, or BRS longevity retired pay from a user-entered pay base.

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EMI Calculator

Calculate monthly loan EMI, total interest, payoff time, and an amortization schedule.

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Home Loan Calculator

Estimate home-loan EMI, housing costs, loan-to-value ratio, interest, and upfront cash.

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Personal Loan Calculator

Estimate personal-loan EMI, interest, fees, net proceeds, and effective cost.

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Car Loan Calculator

Estimate financed vehicle cost, EMI, interest, upfront payment, tax, and insurance.

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Loan Eligibility Calculator

Estimate eligible EMI and loan amount using income, obligations, expenses, FOIR, rate, and tenure.

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Loan Comparison Calculator

Compare three loans by EMI, interest, fees, total payment, and overall cost.

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Mortgage Calculator

Estimate global mortgage principal, monthly housing payment, total interest, and amortization.

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Simple Interest Calculator

Calculate simple interest and total amount from principal, annual rate, and time.

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Compound Interest Calculator

Project compound growth with flexible frequency and recurring monthly contributions.

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SIP Calculator

Estimate SIP maturity value, invested amount, returns, and annual step-up growth.

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Lump Sum Investment Calculator

Estimate lump-sum maturity value, total returns, and annual growth.

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CAGR Calculator

Calculate compound annual growth rate from values and either years or exact dates.

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Future Value Calculator

Estimate future value from present value, rate, time, frequency, and recurring contributions.

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Present Value Calculator

Discount a future amount to its estimated value today.

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FD Calculator

Estimate fixed-deposit maturity, interest, and periodic payout.

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RD Calculator

Estimate recurring-deposit maturity, deposits, interest, and deposit schedule.

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Savings Goal Calculator

Find required monthly savings or estimate time needed to reach a target.

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Retirement Calculator

Project retirement savings, inflated expenses, required corpus, and surplus or shortfall.

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Inflation Calculator

Estimate a future cost and the loss of purchasing power caused by inflation.

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GST Calculator

Add or remove GST and split the tax into CGST, SGST, or IGST.

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Income Tax Calculator India

Estimate Indian income tax and compare old and new regimes using updateable year settings.

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Salary Calculator India

Estimate annual and monthly in-hand salary from CTC or gross salary inputs.

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Gratuity Calculator India

Estimate gratuity from last-drawn basic plus DA and completed service.

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HRA Calculator India

Estimate exempt and taxable HRA using salary, rent, city type, and duration.

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PPF Calculator India

Project PPF deposits, interest, maturity value, and year-wise balance.

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NPS Calculator India

Estimate NPS corpus, lump sum, annuity allocation, and monthly pension.

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EPF Calculator India

Project employee, employer EPF, EPS allocation, and retirement corpus.

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SWP Calculator

Estimate systematic withdrawals, remaining balance, and possible depletion.

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Mutual Fund Return Calculator

Estimate lump-sum or SIP mutual-fund growth before and after an expense ratio.

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Break-Even Calculator

Find break-even units, revenue, contribution margin, and profit at expected volume.

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Profit Margin Calculator

Calculate profit, margin, markup, or selling price from a target margin.

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Currency Percentage Change Calculator

Calculate absolute and percentage change with an increase or decrease label.

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Credit Card Payoff Calculator

Estimate payoff time, interest, total paid, or required payment for a target period.

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Debt-to-Income Ratio Calculator

Calculate front-end and back-end debt-to-income ratios with a general interpretation.

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Emergency Fund Calculator

Estimate essential monthly expenses, recommended fund, funding gap, and saving requirement.

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Net Worth Calculator

Total assets and liabilities to calculate net worth and asset-to-liability ratio.

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Rule of 72 Calculator

Approximate doubling time from return, or required return from a desired doubling time.

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Doubling Time Calculator

Compare exact logarithmic doubling time with the Rule-of-72 approximation.

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♡ Category

Health Calculators

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TDEE Calculator

Estimate total daily energy expenditure from a shared BMR method and editable activity multiplier.

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Calorie Deficit Calculator

Compare entered energy intake with TDEE or estimate intake from a user-entered deficit.

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Maintenance Calorie Calculator

Estimate adult maintenance energy while keeping BMR and activity-adjusted energy distinct.

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Macro Calculator

Reconcile protein, carbohydrate, and fat targets by percentage or grams.

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Protein Intake Calculator

Convert an editable grams-per-weight protein target into daily, calorie, and per-meal estimates.

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Carbohydrate Calculator

Convert carbohydrate calories and grams or reconcile remaining calories after protein and fat.

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Keto Macro Calculator

Calculate remaining fat from user-entered calorie, protein, and carbohydrate targets.

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Weight Loss Calculator

Model a user-entered weight-loss goal, timeline, and theoretical energy difference without promising change.

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Weight Gain Calculator

Model a user-entered weight-gain goal, timeline, and theoretical calorie surplus.

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Weight Loss Percentage Calculator

Calculate neutral percentage weight change in either direction from a non-zero starting weight.

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Body Surface Area Calculator

Estimate body surface area with verified Mosteller and Du Bois equations.

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FFMI Calculator

Estimate fat-free mass index from height, weight, and an entered body-fat percentage.

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Lean Body Mass Calculator

Compare population-derived Boer and Hume lean-body-mass estimates.

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Army Body Fat Calculator

Estimate body-fat percentage with the U.S. Army 2023 one-site circumference equation.

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Bra Size Calculator

Estimate a starting band and cup reference across US, UK, and EU conventions.

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Body Shape Calculator

Compare shoulder, chest, waist, and hip ratios using transparent editable tolerance rules.

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Face Shape Calculator

Compare manual face measurements with transparent subjective styling conventions.

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VO₂ Max Calculator

Estimate VO₂ max from a Cooper 12-minute run or Rockport one-mile walk field test.

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Steps to Miles Calculator

Convert steps and distance with a user-entered or clearly estimated stride length.

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Life Expectancy Calculator

Look up average remaining years in the official U.S. Social Security period life table.

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BMI Calculator

Calculate adult body mass index and a height-based reference weight range.

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BMR Calculator

Estimate adult basal metabolic rate using the Mifflin–St Jeor equation.

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Calorie Calculator

Estimate adult daily maintenance calories from BMR and activity level.

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Body Fat Calculator

Estimate body-fat percentage with the US Navy circumference method.

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Healthy Weight Reference Calculator

Compare four legacy weight-reference formulas and a BMI-based range.

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Heart Rate Zone Calculator

Estimate moderate and vigorous exercise heart-rate ranges.

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Running Pace Calculator

Calculate running pace, time, distance, speed, and cumulative splits.

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Pregnancy Due Date Calculator

Estimate a pregnancy due date, gestational week, and trimester milestones.

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Ovulation Calculator

Estimate ovulation, fertile-window, and future cycle dates.

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∑ Category

Math Calculators

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Percentage Calculator

Find percentages, percentage change, and percentage values.

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Fraction Calculator

Add, subtract, multiply, or divide fractions and see every simplification step.

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Ratio Calculator

Simplify, scale, divide, solve, and compare two- or three-part ratios.

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Average Calculator

Find arithmetic, weighted, geometric, or harmonic averages with supporting statistics.

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Median Calculator

Find the median, quartiles, halves, and interquartile range of a data set.

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Percentage Difference Calculator

Compare two values symmetrically using their average magnitude.

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Rounding Calculator

Round by decimal places, significant figures, place value, floor, ceiling, or truncation.

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LCM Calculator

Find the least common multiple of two or more integers with pairwise steps.

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GCD / HCF Calculator

Find the GCD or HCF with Euclidean steps and Bézout coefficients for two values.

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Prime Number Calculator

Check primality, list a range, find neighboring primes, or factor an integer.

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Factor Calculator

List factors, factor pairs, prime factors, divisor count, and divisor sum.

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Square Root Calculator

Calculate square or nth roots, simplified radicals, and nearby perfect powers.

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Exponent Calculator

Calculate integer, negative, and fractional powers with scientific notation.

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Logarithm Calculator

Calculate common, natural, binary, custom-base logs, and antilogarithms.

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Standard Deviation Calculator

Calculate population or sample variance and standard deviation with a full deviation table.

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Probability Calculator

Solve event, conditional, permutation, combination, and binomial probabilities.

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Quadratic Equation Calculator

Find real or complex roots, vertex, axis, and a responsive parabola graph.

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Decimal to Fraction Calculator

Convert terminating or approximate decimals into reduced fractions and mixed numbers.

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Fraction to Decimal Calculator

Convert a fraction to decimal and identify terminating or recurring behavior.

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Scientific Calculator

Evaluate safe scientific expressions with precedence, functions, memory, and DEG/RAD modes.

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Random Number Generator

Generate integers, decimals, unique values, shuffled lists, or random selections.

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31 Category

Date and Time Calculators

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Age Calculator

Calculate exact calendar age, elapsed totals, and the next birthday.

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Birthday Calculator

Find the next and previous birthday, days remaining, and milestone ages.

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Retirement Date Calculator

Estimate a retirement date from date of birth, editable age, and retirement rule.

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School Admission Age Calculator

Check a child’s exact age against user-entered admission cutoff rules.

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Exam Age Eligibility Calculator

Compare age on an official cutoff date with editable minimum, maximum, and relaxation rules.

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Date Difference Calculator

Measure signed or absolute calendar difference in years, months, days, and elapsed totals.

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Days Between Dates Calculator

Count calendar days, weeks, weekdays, and weekends with explicit inclusion rules.

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Months Between Dates Calculator

Calculate completed calendar months, years and months, remaining days, or fractional months.

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Add or Subtract Days Calculator

Move a date by days, weeks, months, or years with optional weekend skipping.

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Business Days Calculator

Add or subtract business days using custom weekends and manually entered holidays.

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Date Calculator

Quickly compare dates, add or subtract date units, or find a weekday.

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Working Days Calculator

Count working days using selectable weekends and manually entered holidays.

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Time Duration Calculator

Find elapsed time between clocks or dated times, including overnight spans and breaks.

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Hours Calculator

Add or subtract durations, convert decimal hours, or total multiple work shifts.

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Minutes to Hours Calculator

Convert minutes, decimal hours, or hours-and-minutes formats exactly.

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Day of the Week Calculator

Find a date’s weekday, day of year, ISO week, and neighboring weekly occurrences.

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Week Number Calculator

Find ISO, Monday-first, or Sunday-first week numbers and week boundaries.

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Leap Year Calculator

Check, find, or list Gregorian leap years using the century rule.

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Countdown Calculator

Show a live days-hours-minutes-seconds countdown to a local or UTC target.

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Time Zone Converter

Convert an entered wall-clock time between browser-supported IANA time zones.

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↔ Category

Unit Converters

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Unit Converter

Convert values across 16 measurement categories in one universal tool.

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Length Converter

Convert metric, imperial, nautical, and astronomical lengths.

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Weight and Mass Converter

Convert kilograms, pounds, ounces, stones, tonnes, and more.

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Temperature Converter

Convert Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur.

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Area Converter

Convert square units, hectares, acres, and square miles.

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Volume Converter

Convert metric, US customary, and imperial liquid volumes.

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Speed Converter

Convert speed among km/h, mph, knots, m/s, and Mach.

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Time Unit Converter

Convert seconds, minutes, hours, days, weeks, and year conventions.

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Height Converter

Convert centimetres and metres to normalized feet and inches.

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Pressure Converter

Convert pascals, bar, atmospheres, torr, mmHg, and psi.

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Energy Converter

Convert joules, calories, watt-hours, BTU, and electronvolts.

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Power Converter

Convert watts, kilowatts, horsepower definitions, and BTU/h.

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Force Converter

Convert newtons, pound-force, kilogram-force, dynes, and more.

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Density Converter

Convert density units used in science, engineering, and materials.

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Angle Converter

Convert degrees, radians, gradians, turns, arc units, and milliradians.

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Frequency Converter

Convert hertz, SI multiples, RPM, RPS, and radians per second.

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Data Storage Converter

Convert bits and bytes using clearly separated SI and IEC prefixes.

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Number Base Converter

Convert exact integers among binary, octal, decimal, hexadecimal, or bases 2–36.

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Fuel Economy Converter

Convert km/L, L/100 km, US mpg, and imperial mpg.

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Cooking Measurement Converter

Convert cooking volumes and masses, including ingredient-based estimates.

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Shoe Size Converter

Compare approximate US men, US women, UK, EU, and foot-length sizes.

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⌂ Category

Construction Calculators

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Square Footage Calculator

Calculate rectangle, square, triangle, circle, trapezoid, or multi-room area.

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Wall Area Calculator

Calculate wall surface area with openings and optional both-side coverage.

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Flooring Calculator

Estimate floor area, waste-adjusted coverage, packs, and material cost.

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Tile Calculator

Estimate tiles, boxes, waste, and cost for floor or wall surfaces.

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Paint Calculator

Estimate paint and primer volume, containers, and cost after opening deductions.

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Concrete Calculator

Estimate wet concrete volume, bags, truck loads, waste, and cost.

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Brick Calculator

Calculate custom brick quantities after openings, mortar joints, and waste.

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Concrete Block Calculator

Estimate editable concrete block quantities, waste, and cost for a wall.

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Cement Calculator

Estimate cement volume, mass, bags, and cost from an editable mix assumption.

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Concrete Block Wall Calculator

Estimate blocks, mortar, optional reinforcement, waste, and wall material cost.

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Rebar Calculator

Estimate slab-grid bar count, linear length, stock bars, laps, mass, and cost.

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Sand Calculator

Calculate sand volume, editable density-based mass, waste, and cost.

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Gravel Calculator

Estimate rectangular or circular gravel volume, mass, waste, and cost.

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Excavation Calculator

Estimate in-place and loose excavation volume, soil mass, truckloads, and cost.

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Drywall Calculator

Estimate drywall area, whole sheets, waste, and cost using editable sheet sizes.

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Roofing Calculator

Calculate roof pitch factor, sloped area, roofing squares, bundles, and cost.

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Stair Calculator

Calculate candidate risers, treads, run, stringer length, and stair angle.

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Paver Calculator

Estimate pavers, pattern waste, pallets, and cost for a project area.

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Mulch Calculator

Calculate mulch volume, bulk units, bags, waste, and cost.

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Material Cost Calculator

Build a private multi-item project estimate with waste, tax, delivery, and other costs.

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A+ Category

Education Calculators

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Grade Calculator

Calculate a course grade from points or weighted categories with optional normalization.

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Final Grade Calculator

Find the remaining assessment score needed to reach a target course grade.

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Weighted Grade Calculator

Calculate raw and optional normalized weighted grades across assessments.

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Test Score Calculator

Calculate test percentage, grade, answer breakdown, and optional negative marking.

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Quiz Score Calculator

Calculate quiz score, accuracy, attempt rate, grade, and negative marks.

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Marks Percentage Calculator

Calculate pooled, equal-subject, or weighted percentage from subject marks.

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Percentage to Grade Calculator

Convert a percentage using an editable example or custom grade scale.

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Assignment Weight Calculator

Calculate assignment contribution, required score, equal split, or redistributed weight.

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GPA Calculator

Calculate credit-weighted GPA from grade points, letters, or percentages.

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CGPA Calculator

Calculate cumulative GPA using credit weighting, explicit simple averaging, or existing CGPA.

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Semester Grade Calculator

Calculate semester GPA, quality points, credits, and course contributions.

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Target GPA Calculator

Find the future GPA needed to reach a cumulative GPA target.

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Credit Hour Calculator

Calculate total, remaining, per-semester, and estimated contact-hour credits.

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Attendance Calculator

Calculate attendance, classes needed, allowable absences, and a future projection.

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Class Rank Percentile Calculator

Convert class rank and percentile using a clearly selected convention.

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Study Time Calculator

Estimate available study hours and allocate them by subject priorities.

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Study Planner Calculator

Create a deterministic day-by-day study schedule with overload reporting.

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Reading Time Calculator

Estimate reading time from words, local text, or pages and split it into sessions.

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Words per Minute Calculator

Calculate reading, typing, or speaking speed with transparent assumptions.

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Graduation Year Calculator

Estimate a completion month and year from editable global timeline assumptions.

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DAY Category

Everyday Calculators

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Tip Calculator

Calculate an optional tip and split a bill using your chosen currency and rounding rule.

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Discount Calculator

Find sale price, savings, original price, sequential discounts, or a buy-X-get-Y rate.

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Sales Tax Calculator

Add or remove user-entered tax and compare base-applied versus compounded components.

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Split Bill Calculator

Divide a bill equally, by percentages, custom amounts, or item assignments without silently normalizing shares.

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Price per Unit Calculator

Compare compatible product quantities after conversion to a shared base unit.

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Grocery Unit Price Calculator

Compare grocery multipacks, package quantities, sale prices, and coupon discounts.

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Fuel Cost Calculator

Estimate trip fuel, toll, parking, passenger, return, and repeated-trip costs.

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Mileage Calculator

Calculate weighted fuel economy from distance, odometers, or multiple fill-ups in four common units.

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Travel Time Calculator

Estimate journey duration, breaks, and arrival time without maps or live traffic data.

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Commute Cost Calculator

Estimate daily through annual commuting cost using editable work patterns and cost categories.

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Electricity Cost Calculator

Estimate an electricity bill from known use, meter readings, or validated user-entered tariff tiers.

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Appliance Energy Cost Calculator

Estimate active and standby energy use for multiple appliances with your electricity rate.

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Water Intake Calculator

Estimate daily fluid intake with transparent weight, activity, climate, and manual adjustments.

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Sleep Calculator

Work backward or forward from a clock time, or calculate overnight sleep duration.

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Cooking Time Calculator

Plan preparation, preheating, user-entered cooking time, resting, batches, and serving time.

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Recipe Serving Calculator

Scale an ingredient list proportionally and apply only the rounding rule you select.

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Dog Age Calculator

Estimate a dog’s human-age equivalent using early development and size-sensitive adult ageing.

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Cat Age Calculator

Estimate a cat’s human-age equivalent using staged early development rather than a constant multiplier.

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Random Decision Maker

Generate yes/no, coin, dice, single, multiple, weighted, ordered, or elimination-style choices.

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Anniversary Calculator

Measure any event anniversary, find the next date, and list upcoming milestones with leap-day handling.

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