How to Calculate Compound Interest Online
Compound interest calculator with monthly contributions
This online compound interest calculator estimates future value based on your starting principal, interest rate, time horizon, compounding frequency, and optional monthly contributions or withdrawals. Use our compound interest formula calculator to compare scenarios and understand how small changes compound over time.
Compound interest formula calculator
The compound interest formula is FV = P × (1 + r/n)^(n×t), where P is the principal, r is the annual interest rate, n is compounding periods per year, and t is time in years. Our compound interest calculator with yearly breakdown shows you exactly how your money grows each period.
Benefits of using our compound growth calculator free
Whether you're calculating compound interest for a savings account or modeling investment growth, this free compound interest calculator gives you instant results. For monthly investing, try our SIP calculator. For planned withdrawals, compare outcomes with the SWP calculator. Compare against simple interest to see why compounding matters.