Compound Interest Calculator
Project investment growth with starting principal, recurring contributions, interest rate, time, and compounding frequency.
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Future value
$63,620.23
Total contributions
$40,000.00
Interest earned
$23,620.23
How to use the Compound Interest Calculator
Enter your starting amount
Add the money you already have saved or invested.
Set contributions and rate
Enter a monthly contribution, expected annual rate, years, and compounding frequency.
Compare growth
Review future value, total contributions, and estimated interest earned.
What is the Compound Interest Calculator?
The compound interest calculator projects how savings or investments may grow when interest is reinvested. It supports a starting balance, monthly additions, annual rate, time horizon, and compounding frequency for quick planning scenarios.
- Future value projection
- Monthly contribution support
- Configurable compounding frequency
- Total contribution breakdown
- Estimated interest earned
- Copyable results
Frequently Asked Questions
What is compound interest?
Are monthly contributions compounded immediately?
Can I use it for savings or investments?
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