Compound Interest Calculator

Calculate how interest compounds over time. Adjust the compounding frequency to see how monthly compounding differs from annual — and how Einstein's "eighth wonder of the world" actually works.

Investment details

Principal amount

₹

₹1.00 L

Annual interest rate8%

0.5%30%

Compounding frequency

Time period5 yr

1 yr40 yr

Results

Principal

₹1.00 L

Interest earned

₹48,985

Final amount

₹1.49 L

PrincipalInterest earned

Wealth multiplier1.49×

Formula: A = P × (1 + r/n)^(n×t) where P is principal, r is annual rate, n is compounding periods per year, and t is years. More frequent compounding produces slightly higher returns due to interest-on-interest within the year.

Results are estimates. Actual returns depend on the product and its terms.