Compound Interest Calculator
Calculate growth of your investments with compound interest.
Compound interest is interest calculated on the initial principal, which also includes all of the accumulated interest from previous periods. It causes your savings to grow faster over time.
Formula
A = P(1 + r/n)^(nt)
Where A = Final amount, P = Principal, r = Rate, n = Frequency, t = Time.
Example: ₹1 Lakh at 10% for 5 years (Annual compounding):
1,00,000 × (1 + 0.10)⁵ = ₹1,61,051
Rule of 72
Divide 72 by the annual interest rate to find how many years it takes to double your money. At 8%, money doubles in 72/8 = 9 years.