Compound interest calculator
Free Financial Tool
Compound Interest Calculator (Free & Instant Tool)
Use this free compound interest calculator to estimate how your savings or investments will grow over time. Enter your initial investment, monthly contributions, interest rate, and time period to instantly see your future value, total contributions, and interest earned.
See how your savings grow with compound interest
No signup required. Instant results. Works for savings, investments, and retirement planning.
Future value
$0
Total contributions
$0
Interest earned
$0
| Year | Balance | Contributed | Interest |
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What is compound interest?
Compound interest is interest earned on both your initial investment and accumulated interest over time.
How is compound interest calculated?
It’s calculated using a formula that includes principal, interest rate, time, and compounding frequency.
Is this calculator accurate?
Yes, it provides a reliable estimate based on standard compound interest formulas.