📈 Compound Interest Calculator
Calculate compound interest with various compounding frequencies.
Result
Frequently Asked Questions
What is compound interest?▾
Interest calculated on principal plus accumulated interest, creating exponential growth.
How often should interest compound?▾
More frequent = more earnings. Daily > Monthly > Annually.
About Compound Interest Calculator
What is Compound Interest?
Compound interest is interest on both principal and accumulated interest. It creates exponential growth over time. The formula is A = P(1 + r/n)^(nt).
Rule of 72
Divide 72 by your interest rate to estimate years to double your money. At 6%, money doubles in ~12 years.