Simple Interest Calculator
Interest earned and total amount using I = P × r × t.
Inputs
Result
Enter your values to see the result.
How it works
Simple interest is calculated only on the original amount, so it grows by the same sum every year. Compare it with compound interest, where interest also earns interest.
- I = P × r × t
- A = P + I (r as a fraction, t in years)
Assumptions
- Money is rounded to 2 decimals (half away from zero) at each step.
- Taxes and fees are not deducted.
Every calculation runs in your browser. Nothing you enter is uploaded.