Compound Interest & Growth Calculator

📈 Compound Interest Calculator

Principal —

Rate —

Accrued Interest —

Future Value —

Adjust the inputs to see values substituted into the formulas and watch the growth curve update in real time.

Principal P

Annual rate r

Compounding n / year

Time t (years)

Monthly contribution PMT (optional)

Compound interest (principal)

Total balance

Principal growth Contributions Total balance