Measure payment savings against upfront or financed refinance costs, cash-out borrowing, holding period, and term changes.
Calculate with the Mortgage Refinance Calculator
Enter the details below. Required values are validated before results are shown.
Mortgage Refinance Calculator results
How to use the Mortgage Refinance Calculator
- Choose the display currency and any calculation mode or frequency.
- Enter each required value using a consistent currency and time basis.
- Select Calculate or press Enter.
- Review the result explanation, assumptions, and any schedule before relying on the estimate.
Worked example
A lower rate can still increase lifetime cost if closing costs are high or the term is extended.
Understanding the results
The summary separates the most important output from supporting values. Currency selection changes formatting only; it does not convert exchange rates or alter a currency-independent formula.
Frequently asked questions
Does a lower refinance payment always mean lower total cost?
The comparison separately tests holding-period and full-term costs; no break-even is shown when monthly savings are zero or negative. The result depends on the values and assumptions entered, so compare it with the applicable provider or official rule.
Can I use decimal values in the Mortgage Refinance Calculator?
Yes. Decimal values are supported. Results are calculated at full JavaScript numeric precision and formatted for readability.
Are the Mortgage Refinance Calculator results guaranteed?
No. The calculator provides an estimate based on the entered assumptions and is not financial, tax, investment, lending, payroll, or legal advice.