Mortgage Calculators

Mortgage Payoff calculator

See how adding to your monthly payment shortens your mortgage and slashes the interest you pay.

Inputs

Current loan balance

Interest rate

Years remaining

Extra monthly payment

Estimates only. Change any value to recalculate instantly.

Interest you would save $64,196 and pay off 68 months (5.7 years) sooner

Current payment (P&I) $1,620.50

New payment $1,820.50

New payoff time 19.3 yrs

Interest without extra $246,149

Interest: with vs without extra

Interest you still pay $182k
Interest saved $64k

Balance over time Balance (extra)Balance (base)

Adding $200 a month saves $64,196 and 5.7 years.

Yearly amortization (with extra payment)View table

Year	Principal	Interest	Balance
1	$4,035	$15,411	$233,565
2	$4,466	$14,980	$226,698
3	$4,926	$14,520	$219,372
4	$5,417	$14,029	$211,555
5	$5,940	$13,505	$203,214
6	$6,499	$12,947	$194,315
7	$7,095	$12,351	$184,820
8	$7,731	$11,715	$174,689
9	$8,409	$11,037	$163,880
10	$9,133	$10,313	$152,347
11	$9,906	$9,540	$140,041
12	$10,730	$8,716	$126,911
13	$11,609	$7,837	$112,902
14	$12,547	$6,899	$97,954
15	$13,549	$5,897	$82,006
16	$14,617	$4,829	$64,989
17	$15,756	$3,690	$46,833
18	$16,972	$2,474	$27,461
19	$18,270	$1,176	$6,791
20	$6,191	$89	$0

How this calculator works

This calculator runs entirely in your browser — nothing you enter is sent anywhere, and there is no sign-up. Change any input and the result, breakdown, and schedule update instantly.

Rate and cost fields are pre-filled with current benchmarks (Federal Reserve / Freddie Mac via FRED (St. Louis Fed)), so your first result is already realistic — replace them with your own quote to see your numbers. To weigh one option against another, use the loan comparison calculator.

30-year fixed mortgage rate, 2019–2026

Source: Freddie Mac PMMS via FRED. Annual averages; latest weekly reading shown.

Common questions

Is this calculator free, and do I need to sign up?

Yes and no — it is completely free and asks for no account or personal details. Every calculation happens in your browser, so nothing you type is stored or sent to us.

How accurate are the results?

The math is exact for the inputs you give it, but the defaults are national benchmarks — your real rate, fees, taxes, and insurance will differ. Treat the result as a close estimate to refine with a real quote.