📈 Calculator
Compound Interest Calculator
Free compound interest calculator. See how your savings or investment grows over time with any rate and compounding frequency.
Final balance$20,096.61
Interest earned$10,096.61
Total contributions$10,000.00
See how an initial amount grows with compound interest. Choose the rate, number of years and how often interest compounds to project the final balance and total interest earned.
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How It Works
1
Enter your values
Fill in the fields above.
2
See the result
The answer updates instantly as you type.
3
Adjust & compare
Tweak any value to compare scenarios.
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Frequently Asked Questions
What does compounding frequency change?+
More frequent compounding (e.g. monthly vs annually) earns slightly more interest, because interest starts earning interest sooner.
Does this include regular deposits?+
This version projects growth of a single initial amount. For recurring contributions, add them to the initial amount as an estimate.