Refinance Calculator – Savings & Break-Even
Enter your loan balance, new rate, term and closing costs to see the new payment, monthly savings, interest saved and the refinance break-even month.
Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.
How the Refinance Calculator Works
The new payment follows the annuity formula M = P × r(1+r)ⁿ ÷ ((1+r)ⁿ − 1), with r the new monthly rate (annual ÷ 12) and n the remaining months. Monthly savings = current payment − new payment; the break-even point = closing costs ÷ monthly savings. Example: $200,000 with 30 years left refinanced from 7% to 5.5% cuts the payment from about $1,331 to $1,136 — saving $195 a month, so $4,000 of closing costs break even in about 21 months.
- 1
Enter balance and current payment
The remaining loan balance and what you pay now.
- 2
Enter the new rate, term and costs
New annual rate, remaining years and closing costs.
- 3
Read the results
New payment, monthly savings, interest saved and break-even.
FAQs
How much can I save by refinancing?
When does refinancing break even?
What if the new payment is higher?
How is the new payment calculated?
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