Example: Future value 47,526.55. Change the values above to calculate your own.
About the Compound Interest Calculator
Compound interest earns interest on previous interest, so growth speeds up over time. Add a regular monthly contribution to see how much difference saving consistently makes.
How to use the Compound Interest Calculator
- Enter your numbers (or keep the example).
- The result updates instantly as you type.
- Copy the result, or copy the link: it keeps your numbers so you can share them.
Growth by year
| Year | Contributions | Interest | Balance |
|---|---|---|---|
| Year 1 | 12,400.00 | 567.39 | 12,967.39 |
| Year 2 | 14,800.00 | 1,286.60 | 16,086.60 |
| Year 3 | 17,200.00 | 2,165.39 | 19,365.39 |
| Year 4 | 19,600.00 | 3,211.93 | 22,811.93 |
| Year 5 | 22,000.00 | 4,434.80 | 26,434.80 |
| Year 6 | 24,400.00 | 5,843.03 | 30,243.03 |
| Year 7 | 26,800.00 | 7,446.09 | 34,246.09 |
| Year 8 | 29,200.00 | 9,253.96 | 38,453.96 |
| Year 9 | 31,600.00 | 11,277.11 | 42,877.11 |
| Year 10 | 34,000.00 | 13,526.55 | 47,526.55 |
How it's calculated
Each month the balance grows by the interest for that period and the contribution is added. The table shows the balance at the end of each year.
Features
- Instant resultsUpdates as you type.
- Shareable linkThe URL keeps your inputs.
- Reference tableCommon values on this page.
- Works offlineRuns in your browser.
Frequently asked questions
Is the Compound Interest Calculator free?
Yes, the Compound Interest Calculator is free with no sign-up, no limits and no ads covering the result.
Does it work on my phone?
Yes. It works in any modern browser on phones, tablets and computers, and keeps working offline once the page has loaded.
Last updated · Processing happens locally in your browser.