Compound Interest Calculator
See how your money grows with compound interest over time.
Compound Interest Calculator
Results
Formula & Methodology
Where:
A = Final amount
P = Principal
r = Annual interest rate (decimal)
n = Compounding frequency per year
t = Time in years
Interest Earned = A - P
About Compound Interest Calculator
Compound interest is the interest calculated on both the initial principal and the accumulated interest from previous periods — often called "interest on interest." This is the mechanism that makes long-term investments so powerful.
The Power of Compounding
Albert Einstein reportedly called compound interest "the eighth wonder of the world." The earlier you start investing, the more time compound interest has to work in your favor.
Example: ₹10,000 at 8% annually for 30 years = ₹100,627 (10x growth!)
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