The Compound Interest Calculator projects how savings or investments grow when interest earns interest over time. Unlike simple interest, compounding accelerates long-term growth — making it essential for retirement planning, fixed deposits, savings goals, and comparing investment products.
Enter your principal, rate, compounding frequency, and duration, then click Calculate to see projected final value and total gains.
For regular monthly contributions rather than a lump sum, use the
SIP calculator. For non-compounding scenarios, try the
simple interest calculator.