Mortgage Refinance Calculator

Free · no sign-up · reviewed September 2026

Refinancing swaps your current mortgage for a new one, ideally at a lower rate. But closing costs mean it only pays off if you stay long enough. This calculator shows your new payment, your monthly savings, and the break-even month when the savings finally cover the costs.

Enter your current loan and the new rate you're being offered. The key number is the break-even: if you'll own the home past that point, refinancing usually makes sense. If you might move sooner, it may not.

Drag to adjust

Your numbers

Starts at 7.28%, the national average on a 30-year fixed (Freddie Mac, Oct 1, 2026). Use a lender's quote instead if you have one.

Roughly 2–5% of the loan

🖼 Save image

Your numbers save automatically on this device. The link opens this calculator with these exact numbers filled in, so you can bookmark a scenario or send it to someone. Printing gives you a clean sheet of just your numbers and the answer, so open the schedule first if you want it on there — whichever view you leave showing is what prints.

Monthly savings

$63.94

Break even on $6,000 costs in 7 yr 10 mo

💡 Refinancing drops your payment by $64 a month. After $6,000 in closing costs, you'd break even in about 7 yr 10 mo. Stay in the home past that point and the refinance pays off. One caution: because the new loan resets to 30 years, you'd actually pay $58,104 more total interest over its life, even with the lower rate.

$2,189

New payment

was $2,253

$64

Monthly savings

lower payment

7 yr 10 mo

Break-even

to recoup costs

New payment$2,189
  • New monthly payment$2,189
  • Monthly savings$64
Current payment
$2,253
New payment
$2,189
Monthly change
-$64
Closing costs
$6,000
Break-even point
7 yr 10 mo
Lifetime interest change
+$58,104
⚖️ Compare two refinance offers

Change one thing about the new loan and see both offers side by side, against the same current mortgage.

Refinance Calculator: 7.28% compared with 6.78%
Figure7.28%Your numbers6.78%ComparedDifference
New monthly payment$2,189.48$2,081.90−$107.58
Monthly savings$63.94$171.52+$107.58
Closing costs$6,000$6,000same
Break even in7 yr 10 mo2 yr 11 mo4 yr 11 mo sooner
Interest on the new loan$468,213$429,484−$38,729
New loan runs for30 yr30 yrsame

Your current loan is identical in both columns — only the new offer changes. Break-even is the closing costs divided by the monthly saving, so an offer that raises your payment never breaks even. Interest is the loan itself, over its full new term, with no extra payments.

📅 Amortization schedule

How each year of the new loan splits between principal and interest, and what you still owe at the end of it. Switch to Months to step through the payments themselves.

YearPrincipalInterestBalance left
1$3,079$23,195$316,921
2$3,311$22,963$313,610
3$3,560$22,714$310,050
4$3,828$22,446$306,222
5$4,116$22,157$302,105
6$4,426$21,848$297,679
7$4,759$21,514$292,919
8$5,118$21,156$287,802
9$5,503$20,771$282,299
10$5,917$20,356$276,381
11$6,363$19,911$270,019
12$6,842$19,432$263,177
13$7,357$18,917$255,820
14$7,911$18,363$247,910
15$8,506$17,768$239,404
16$9,146$17,127$230,258
17$9,835$16,439$220,423
18$10,575$15,699$209,847
19$11,371$14,902$198,476
20$12,227$14,046$186,249
21$13,148$13,126$173,101
22$14,138$12,136$158,963
23$15,202$11,072$143,762
24$16,346$9,928$127,415
25$17,577$8,697$109,839
26$18,900$7,374$90,939
27$20,323$5,951$70,616
28$21,852$4,421$48,764
29$23,498$2,776$25,266
30$25,266$1,007$0
Total$320,000$468,213$0

Interest is charged on the balance you still owe, so early years are mostly interest and later years mostly principal. Assumes every payment is made on time and the rate never changes. It also assumes no extra principal is paid. This is the loan you'd be refinancing into — 30 years at 7.28%. Principal and interest only; closing costs, taxes and insurance aren't part of the balance you owe.

⚠️ Lower payment, but more total interest: resetting to a 30-year term stretches the loan back out. If you keep your old payoff timeline, the refinance can still win.

Refinance Calculator · Far Better Off

https://farbetteroff.com/calculators/refinance-calculator

Open that link to get this calculator back with these exact numbers. Estimates for education only — Far Better Off is not a lender or a financial advisor, and these results are not financial advice.

The 2-minute guide

Break-even is the whole decision

Refinancing isn't free. You pay closing costs up front, then earn them back slowly through a lower payment. Divide the closing costs by your monthly savings and you get the break-even point. Plan to stay in the home comfortably past it, or the refinance costs you money instead of saving it.

Watch the reset trap

Refinancing a loan you're 5 years into back to a fresh 30-year term lowers your payment partly because you're stretching it out again. That can mean more total interest even at a lower rate. If you can, refinance into a term that keeps or shortens your original payoff date.

The rule of thumb on rates

There's no magic number, but many people find refinancing worthwhile when the new rate is at least 0.5% to 1% below their current one, and they'll stay past break-even. Always compare the total cost, not just the rate, since lender fees vary a lot.

Frequently asked questions

Should I refinance my mortgage?

Refinancing makes sense when the new rate is meaningfully lower than your current one and you'll stay in the home past the break-even point (closing costs divided by monthly savings). If you might move before then, or the new loan stretches your term way back out, it may not be worth it.

What is the break-even point on a refinance?

It's how long it takes for your monthly savings to add up to what you paid in closing costs. If refinancing saves $200 a month and costs $6,000, you break even in about 30 months. After that, the savings are yours to keep.

Does refinancing save money if it lowers my payment?

Not always. A lower payment can come from a lower rate, a longer term, or both. Stretching the loan back out to 30 years lowers the payment but can raise the total interest you pay. Look at both the monthly savings and the lifetime interest change.

What would the new loan's amortization schedule look like?

Open "Amortization schedule" under the results. It runs the new loan month by month and shows, for each year, how much went to principal, how much went to interest, and what you'd still owe at the end of it; the Months toggle shows those individual payments for the first year. It's worth a look before refinancing: a fresh 30-year term puts you back at the start of the curve, where most of every payment is interest.

How much does it cost to refinance?

Closing costs typically run about 2% to 5% of the loan amount, covering appraisal, title, origination and other fees. Some lenders offer 'no-closing-cost' refinances, but they usually bake the cost into a higher rate, so compare carefully.

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