Simple interest calculator
Interest on a principal over time, without compounding
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How to use it
- Enter your numbers.
- The result updates as you type.
- Change any value to see a different outcome.
Questions
What is the simple interest formula?
Interest = P × R × T ÷ 100, where P is the principal, R the yearly rate in percent and T the time in years. ₹10,000 at 6% for 3 years earns 10,000 × 6 × 3 ÷ 100 = ₹1,800.
Is anything I enter stored?
No. Calculations happen in your browser and nothing you type is sent or saved.
Is it free?
Yes, you can use it for free. A subscription removes limits and unlocks premium tools.