Mortgage Calculator
Estimate monthly mortgage payments with optional tax, insurance, and HOA (defaults to 30 years).
- On your device
- No signup
Private on your device
Your information stays on your device and is not uploaded.
Estimate monthly mortgage payments with optional tax, insurance, and HOA (defaults to 30 years).
See interest and time saved from additional mortgage payments with a balance chart.
Generate a mortgage amortization schedule with principal and interest breakdown.
Estimate how long it takes to pay off a loan balance and how much interest you will pay.
Compare current and refinanced mortgage payments.
Scientific calculations with trig, logs, powers, memory, and history — private on your device.
Plot and analyze functions with zoom, trace, tables, and numerical analysis tools.
Summarize data lists, run regressions, and explore probability tools privately.
Estimate months to pay off a mortgage with extra payments or a target payoff date.
Use monthly-payment mode when you know your payment, or payoff-months mode when you have a target date.
$250,000 balance at 6.5% with $2,200/month pays off in roughly 19 years with about $250k interest.
Enter your remaining mortgage balance, interest rate, and monthly payment to estimate months until payoff and total interest.
Educational estimate only—not financial, tax, or legal advice. Verify with qualified professionals.
Your data stays on your device and is not uploaded.
FAQ
Yes. It is free to use and you do not need to sign in or create an account.
See the privacy note on this page. Many tools run on your device; some heavier file tools may use secure temporary processing when required.
Yes. Open this page on your phone or tablet, enter your inputs, and use the on-screen controls.
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