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Amortization Calculator — Free Online Calculator
Amortization solves M = P × [r(1+r)ⁿ] / [(1+r)ⁿ−1] — M = monthly payment, P = principal, r = monthly rate, n = number of payments — full schedule breaks each payment into principal and interest. Enter your known values and the calculator solves for the rest instantly. It runs entirely in your browser, so nothing you enter is uploaded to a server. Free to use, with no signup and no watermark.
How to use Amortization
- Enter your known values in the fields.
- The result updates instantly as you type.
- Copy or note down the result.
Frequently asked questions
- What formula does Amortization use?
- M = P × [r(1+r)ⁿ] / [(1+r)ⁿ−1] — M = monthly payment, P = principal, r = monthly rate, n = number of payments — full schedule breaks each payment into principal and interest.
- Can I use it on my phone?
- Yes. The layout adapts to small screens and behaves the same on mobile as on desktop.
- Is my input saved anywhere?
- No. Values stay in your browser and are gone as soon as you close the tab.
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