Compound Interest Calculator
Calculate how your savings grow with compound interest across different compounding frequencies.
Calculate how your savings grow with compound interest across different compounding frequencies.
The amount you start with.
The yearly interest rate.
Number of years to grow.
Additional amount added each month.
A = final amount, P = principal, r = annual rate (decimal), n = compounding periods per year, t = time in years.
A = P(1 + r/n)^(nt)Investing $10,000 at 7% compounded monthly for 30 years grows to over $81,000 — more than 8x your initial deposit — simply through the power of compounding.
Adding $200/month to a $5,000 principal at 6% compounded monthly for 20 years results in nearly $100,000, with contributions totaling only $53,000.