Percentage Calculator
A little math. A lot less effort.
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Simple Interest Calculator
Calculate interest without compounding.
- 01 · Set inputs
- 02 · Calculate
- 03 · Review
- 04 · Export CSV
How to use Simple Interest Calculator
Enter principal, annual rate and years. Review interest and total, then export CSV.
Example
1,000 at 10% simple interest for two years earns 200, for a total of 1,200.
Limits and output
Up to 100 years, rates 0–100%. Interest = P × r × years. No compounding, fees or taxes; currency selection does not convert money.