Simple Interest Calculator
CalculatorsCalculate simple interest on a principal amount.
Result
What is Simple Interest Calculator?
Simple Interest Calculator works out the interest earned on a principal over a set period at a fixed rate.
How to use Simple Interest Calculator
- 1 Enter the principal, rate, and time.
- 2 Read the interest and final amount.
- 3 Adjust the values to compare.
Supported formats and limits
- Input: principal, rate, time
- Output: simple interest and total
- Runs in your browser
Common uses
- Calculate interest on a short-term loan.
- Check a simple interest figure by hand.
- Compare simple vs compound interest.
Things to know
- It does not account for compounding.
- It excludes fees and taxes.
Privacy and file handling
Calculations run in your browser.
Frequently asked questions
How is simple interest different from compound interest?
Simple interest is calculated only on the principal, while compound interest also earns interest on previously earned interest.
What is simple interest?
Interest calculated only on the original principal, without compounding.
Which inputs are needed?
Principal, annual interest rate and the time period.
Does it run online?
It runs in your browser; nothing is uploaded.
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