Finance
Compound Interest Calculator — Free, No Account, Private
🔒 Runs in your browser
Calculate compound interest with daily, monthly, or annual compounding. See total balance and total interest earned over any period. Runs in your browser — your financial data never leaves your device.
How to use this tool
- Enter your initial principal, annual interest rate, and time period.
- Choose a compounding frequency (daily, monthly, or annually).
- See total balance and total interest earned.
€
Compounding
Future value
€16,288.95
Total interest earned€6,288.95
Growth62.89%
Frequently Asked Questions
- What is compound interest?
- Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods.
- How does compounding frequency affect returns?
- More frequent compounding (e.g. monthly vs annually) produces slightly higher returns because interest is reinvested sooner.
- Is this a savings or investment calculator?
- It works for any scenario where returns compound: savings accounts, investments, or loans.
- Are my inputs saved?
- No. The calculator runs entirely in your browser. Nothing is sent to a server.