Simple Interest Calculator

Calculate simple interest on your principal amount.

Initial amount invested.
%
Annual interest rate.
Years
Duration in years.

Simple vs Compound

Simple interest is calculated only on the principal. Use for short-term loans or deposits.

Total Amount

₹ 0

After 5 years at 7% simple interest

Principal

Initial Amount

1 L

Interest

Simple Interest

0

Time

Duration

5 Years

Documentation

How Simple Interest Works

Simple interest is calculated on the original principal only. It does not compound, making it straightforward for short-term calculations.

Common Use

"Car loans, personal loans, some savings accounts, and short-duration deposits."

The Formula

SI = P × R × T100
₹ 0 = (₹ 1,00,000 × 7% × 5) / 100

P = Principal, R = Annual Rate (%), T = Time in years. Total Amount = P + SI.

Last Updated: January 2026

Disclaimer: This calculator provides estimates for educational purposes. Actual interest may vary based on specific terms and conditions.

How to Use

About the Simple Interest Calculator

What it calculates

This simple interest calculator helps you model financial decisions with accurate formulas and clear outputs. Calculate basic interest on your principal amount.

When to use it

Use when comparing loan terms, investment returns, taxes, or savings scenarios before making money decisions.

Example

Adjust the inputs above to model your specific scenario with the Simple Interest Calculator.

Explore More

Related Calculators