Finance
Compound Interest Calculator
See how principal grows with compounding frequency over time.
How this compound interest calculator works
The compound interest calculator takes the numbers you enter and applies a standard formula for this kind of calculation, showing the result instantly with no page reload. See how principal grows with compounding frequency over time.
Everything runs client-side in JavaScript, so your inputs never leave your device — there's no server, no account and no tracking involved in getting your answer.
Frequently asked questions
More frequent compounding means interest is calculated and added to the principal more often, so you earn interest on interest sooner. Daily compounding yields slightly more than annual compounding at the same nominal rate.