Compound interest calculator
Future value with compounding schedule and a simple growth chart.
Runs in this tab. The file stays here.
Amount 1,647.01; interest 647.01
This runs in your browser. Nothing is uploaded.
About Compound interest calculator
Future value with compounding frequency and a simple growth chart.
A = P(1+r/n)^(nt). Chart shows year-end balances. Cross-link to simple interest when you need the non-compounding twin.
How to use Compound interest calculator
- 1Enter principal, rate, compounds/year, years.
- 2Read amount, interest, and chart.
Common questions
Does this include monthly contributions?
No — use the retirement calculator for savings with regular deposits.
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Why this one doesn't upload your file
There is no server to upload to. This page is a static file, and the work happens in your browser using the same graphics and WebAssembly code that renders every other site you visit. Your file is read from disk into memory, processed, and handed back as a download. Once the page has loaded you can disconnect from the network entirely and it keeps working. The longer explanation