Compound Interest Calculator

Free compound interest calculator. Calculate compound interest with daily, monthly, quarterly, or annual compounding frequencies.

How the Compound Interest Calculator works

Compound interest grows earnings exponentially by reinvesting interest at each compounding interval. The rate per period is the annual rate divided by the number of periods, and the exponent is the total number of compounding periods.

Formula

A = P(1 + r/n)^(n × t)

How to use the Compound Interest Calculator

  1. 1The compound interest calculator is designed to be simple and fast.
  2. 2Enter the principal amount.
  3. 3Enter the annual interest rate.
  4. 4Choose the compounding frequency.
  5. 5Enter the time period.
  6. 6Your result is shown immediately.

Examples

  • $10,000 at 5% compounded monthly for 10 years = $16,470
  • $5,000 at 6% compounded quarterly for 5 years = $6,734

Benefits

  • Completely free with no signup required.
  • Runs entirely in your browser for instant results and privacy.
  • Works on mobile, tablet and desktop.
  • Results can be copied with one click.

Frequently Asked Questions

Is the compound interest calculator free to use?

Yes. The compound interest calculator is 100% free, with no signup, no watermark and no hidden limits.

Does the compound interest calculator store my data?

No. All calculations and processing happen locally in your browser. Nothing is uploaded to a server.

Does the compound interest calculator work on mobile?

Yes. The compound interest calculator is fully responsive and works on phones, tablets and desktop computers.

What is compound interest?

Compound interest is interest calculated on both the principal and accumulated interest. The formula is A = P(1 + r/n)^(nt).

How often is interest compounded?

You can choose annual, semi-annual, quarterly, monthly, or daily compounding. More frequent compounding yields more interest.

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