Compound Interest Calculator
Calculate compound interest on a lumpsum investment. Enter the principal, annual rate, and tenure. You get the maturity amount and an optional year-wise breakdown showing opening balance, interest, and closing balance each year.
Compound interest dashboard
Explore how compounding accelerates growth for different tenures and rates of return.
Calculate compound interest on a lumpsum investment. Enter the principal, annual rate, and tenure. You get the maturity amount and an optional year-wise breakdown showing opening balance, interest, and closing balance each year.
Compound interest means interest is added to the principal, and future interest is calculated on the growing balance. FV = P × (1+r)^n with monthly compounding. The year-wise table shows how the balance grows each year.
What is compound interest?
Compound interest is when you earn interest on both the principal and on previously earned interest, so your money grows faster over time.
How is it different from simple interest?
Simple interest is calculated only on the principal. Compound interest is calculated on the principal plus accumulated interest.
Why year-wise breakdown?
The breakdown helps you see how much interest is earned each year and how the balance builds up.
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Standard Financial Formula
This calculator uses globally accepted compound interest formulas used in banking and finance.
No Data Storage
Your financial inputs are processed instantly in your browser. We do not store or share user data.
Clear Calculation Logic
All results are calculated mathematically based on principal, rate, compounding frequency, and time.
Educational Tool
This calculator is designed for planning and estimation purposes only.
Periodic Review
Our financial calculators are periodically reviewed to ensure accuracy and reliability.