Compound Interest Calculator

Reviewed

Enter details
$
%
years
$
ResultUpdates as you type
Future balance$8,235.05
Total deposited$5,000.00
Interest earned$3,235.05
Pie title
  • Deposited60.7%
  • Interest39.3%
Balance title
  • Balance
  • Deposited
$0$2.5K$5K$7.5K$10K0246810

Calculate compound interest with any compounding frequency and optional regular deposits.

Compound interest earns interest on your interest. Choose how often it compounds to see the effect.

Compound interest earns interest on your interest. Choose how often it compounds to see the effect.

Formula

Compound growthA = P(1 + r/k)^(k·t)k = compounds per year, t = years.

Frequently asked questions

Does compounding frequency matter much?

It helps, but with diminishing returns. Moving from annual to monthly compounding makes a noticeable difference; monthly to daily is tiny.

What is APY?

Annual Percentage Yield is the effective yearly rate after compounding: APY = (1 + r/k)^k − 1.

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