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Interest Calculator
Calculate simple or compound interest with flexible compounding frequency.
Principal₹0
Interest earned₹0
Total amount₹0
How interest is calculated
Simple interest: SI = (P × R × T) ÷ 100.
Compound interest: A = P × (1 + R/n)^(n×T), and CI = A − P, where n is the compounding frequency per year.
Frequently asked questions
What is the formula for simple interest?
Simple Interest = (Principal × Rate × Time) ÷ 100, where rate is per year and time is in years.
What is the formula for compound interest?
Amount = Principal × (1 + Rate/n)^(n×Time). Compound interest is the amount minus the principal.
What is the difference between simple and compound interest?
Simple interest is calculated only on the principal, while compound interest is calculated on the principal plus previously earned interest.