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Calculators

Simple interest calculator

Interest and total for an amount, rate and time, or solve for the rate, time or amount.

  1. 1Fill in the values
  2. 2Click Run
  3. 3See results instantly

Limits

  • Simple interest = principal × rate × time / 100, with no compounding. Days are counted as 1/365 of a year and months as 1/12.
  • Solving for rate, time or amount needs the other three values, including the interest.

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The AI chat can run this tool for you. Try:

  • “simple interest on 50000 at 8% for 3 years”
  • “simple interest ₹1,20,000 at 6.5% for 18 months”

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