Interest Calculator
Calculate simple or compound interest on savings, investments, or loans.
Disclaimer: For informational purposes only. Not financial advice.
Related Calculators
FAQ
What is the difference between simple and compound interest?
Simple interest is calculated only on the principal. Compound interest is calculated on the principal plus accumulated interest, growing faster over time.
What compounding frequency should I use?
Most savings accounts compound monthly or daily. Bonds often compound semi-annually. Check your account terms.
Why is compound interest called the 8th wonder?
Because it grows exponentially — small amounts invested early can grow dramatically over decades due to interest earning interest.