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Investment Calculator — Free Online Calculator

Investment Calculator solves A = P(1 + r/n)ⁿᵗ — A = final amount, P = principal, r = annual rate, n = compounds per year, t = years — compound interest. Enter your known values and the calculator solves for the rest instantly. Everything is computed locally in your browser — your data never leaves your device. Completely free, with no account required.

How to use Investment Calc

1. Enter your known values in the fields.
2. The result updates instantly as you type.
3. Copy or note down the result.

Frequently asked questions

What formula does Investment Calculator use?

A = P(1 + r/n)ⁿᵗ — A = final amount, P = principal, r = annual rate, n = compounds per year, t = years — compound 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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