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Mortgage calculator

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This tool never uploads your input.

Estimates only. Not medical, legal, or financial advice.

Monthly payment math for a fixed rate you type: annuity (equal payment) or straight (equal principal). It is not a lender lock, not PMI/escrow, and not a city housing-policy tool.

You want a monthly payment from principal, years, and a rate. That is this page: annuity vs straight principal, in the tab.

Bankrate and NerdWallet own U.S. refinance stacks (PMI, HOA, ARM). 安居客 owns 公积金 / 组合贷. We will not fake those.

How to use it

  1. Enter principal, annual rate, term.
  2. Pick equal payment or equal principal.
  3. Read the schedule as math, not a closing disclosure.

Compare 15 vs 30 by changing the term — still not advice about which is “better.”

Honest limits

  • No points, credits, or origination fees unless you bake them into principal yourself.
  • No LPR or housing-fund policy.
  • Not a prepayment-penalty model.

Compound interest is the savings sibling. This is not financial advice.

FAQ

Which method is ‘normal’ in the US?

Equal payments (annuity / 等额本息) is the usual U.S. fully amortizing fixed loan. Equal principal (straight / 等额本金) pays more at first and less later.

Do you include taxes, insurance, or PMI?

No. Those are extra. Bankrate-class calculators add escrow; we do not.

Can you use today’s average rate automatically?

No. Type the rate from your estimate or servicing portal. Rates move.

Is this a pre-approval?

No. It is not a lender quote and not advice to refinance.

Is this the same as compound interest?

Compound interest is a savings projection. This page amortizes a loan.

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