Mortgage Calculator

Monthly payments, amortization, and payoff-strategy comparison — in USD.

Runs entirely in your browser

Loan Information

$
yr
%
Payment Method

Payoff Strategy

Pick a strategy above to model savings side-by-side.

Monthly Payment
$3,411
Level
Total Interest
$727,917
$1,227,917 total paid
Payoff Term
30yr
360 payments

Remaining Balance Over Time

Yearly Schedule

YearPrincipalInterestBalance
Year 1$4,839$36,091$495,161
Year 2$5,202$35,729$489,959
Year 3$5,592$35,339$484,367
Year 4$6,011$34,919$478,356
Year 5$6,462$34,469$471,894
Year 6$6,946$33,985$464,948
Year 7$7,467$33,464$457,481
Year 8$8,026$32,904$449,455
Year 9$8,628$32,302$440,827
Year 10$9,275$31,656$431,552
Year 11$9,970$30,961$421,582
Year 12$10,717$30,213$410,864
Year 13$11,521$29,410$399,344
Year 14$12,384$28,546$386,959
Year 15$13,313$27,618$373,647
Year 16$14,311$26,620$359,336
Year 17$15,383$25,547$343,953
Year 18$16,536$24,394$327,417
Year 19$17,776$23,155$309,641
Year 20$19,108$21,822$290,532
Year 21$20,541$20,390$269,992
Year 22$22,080$18,850$247,912
Year 23$23,735$17,195$224,176
Year 24$25,515$15,416$198,662
Year 25$27,427$13,503$171,234
Year 26$29,483$11,448$141,751
Year 27$31,693$9,238$110,059
Year 28$34,069$6,862$75,990
Year 29$36,622$4,308$39,368
Year 30$39,368$1,563$0
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Mortgage Calculator — Payment & Amortization

Estimate your monthly mortgage payment and total interest. See a year-by-year amortization breakdown. Compare 15-year vs 30-year, fixed vs variable.

How to calculate a mortgage monthly payment

  1. Enter home price and down payment. Type the home purchase price and your down payment (or percentage).
  2. Set APR and term. Enter the annual interest rate (APR) and term in years (15 or 30 is standard).
  3. Add taxes and insurance (optional). Include annual property tax and homeowner insurance for a complete PITI estimate.
  4. Read the schedule. See monthly payment, total interest paid, payoff date, and a year-by-year principal vs interest breakdown.

Frequently Asked Questions

Is my financial info stored?
No. Calculations run entirely in your browser.
What is PITI?
Principal + Interest + Taxes + Insurance — the full monthly housing cost lenders use to judge affordability.
How much should I put down?
20% avoids PMI (Private Mortgage Insurance) on conventional loans. 3–10% is common with FHA/conventional + PMI. The calculator handles either.
Should I pick 15 vs 30 year?
15-year saves a lot of interest but has higher monthly payment. 30-year is cheaper monthly but you pay 2–3× total interest. Compare both with the side-by-side toggle.
Can I model extra principal payments?
Yes. Add a monthly or annual extra payment and see how many years it shaves off the loan.
Does it handle ARMs?
Basic fixed-rate only. For Adjustable-Rate Mortgages, calculate scenarios at multiple post-adjustment rates separately.

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