Compound Interest Calculator
Calculate how your money grows with compound interest. Supports regular contributions, monthly/quarterly/annual compounding, and shows the breakdown of principal vs. interest over time.
Compound Interest
A = P(1 + r/n)^(nt) + contributions
| Year | Balance | Interest |
|---|---|---|
| 1 | $11,962.16 | $762.16 |
| 2 | $14,066.16 | $904.00 |
| 3 | $16,322.27 | $1,056.10 |
| 4 | $18,741.46 | $1,219.20 |
| 5 | $21,335.54 | $1,394.08 |
| 6 | $24,117.15 | $1,581.61 |
| 7 | $27,099.84 | $1,782.69 |
| 8 | $30,298.15 | $1,998.31 |
| 9 | $33,727.66 | $2,229.51 |
| 10 | $37,405.09 | $2,477.43 |
How to use this tool
1. Enter your input. Use the form above — all processing happens in your browser, no data is sent to any server.
2. View the result. The output appears instantly below the input. Copy any value with one click.
3. Explore related tools. See the related tools section below for adjacent calculators and converters.
4. Bookmark this page. This tool runs entirely client-side, so it works offline once loaded. Add it to your bookmarks for quick access.
Frequently Asked Questions
Everything you need to know about this currency pair
Compound interest is interest calculated on the principal plus accumulated interest from previous periods. Unlike simple interest, your interest earns its own interest — leading to exponential growth over time. Albert Einstein is famously (and apocryphally) quoted as calling compound interest 'the eighth wonder of the world.'