How to use this compound interest calculator
Enter the requested values above and select Calculate. The result updates immediately on the page, so you can change one value and compare different scenarios without leaving the calculator.
Formula and method
Example
At 7% compounded monthly, $10,000 grows for ten years according to the compound-interest formula.
What this calculator is useful for
Project how money grows when interest is added to the balance and earns interest over time. It is designed for quick estimates and everyday problem solving. When a calculation affects a contract, tax filing, medical decision or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
Frequently asked questions
What does the Compound Interest Calculator calculate?
Project how money grows when interest is added to the balance and earns interest over time.
How does the calculation work?
Future value = P(1 + r/n)^(nt).
Is this calculator free?
Yes. ERICH Calculators is free to use and no account is required.