Simple Interest Calculator
Simple interest is charged only on the original amount. Enter the principal, rate and time to get the interest and total.
- Free
- No signup
- Private: runs in your browser
- Works on mobile
Results are estimates for information only and are not financial, tax or legal advice. Rates and rules change, so confirm with the official source or a qualified professional.
Simple Interest Calculator tool
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Example
With the default values shown in the tool, the results look like this:
- Simple interest
- ₹24,000
- Total amount
- ₹1,24,000
How to use Simple Interest Calculator
- Enter your values in the fields above.
- The result updates instantly as you type or change an option.
- Copy the result or note it down. Nothing is saved on our servers.
Why use DocConvertPRO?
- Free to use with no signup or watermark.
- Everything runs in your browser. Your input is not uploaded.
- Works on phones, tablets and computers.
- Made for Indian users: rupees, lakh/crore formats and local use cases.
About this tool
Simple interest = P × R × T ÷ 100.
Frequently asked questions
Simple vs compound interest?
Simple interest is on the principal only; compound interest is also charged on earned interest.
Where is simple interest used?
Some personal loans, short-term lending and school maths problems.
Can time be in months?
Convert to years first, e.g. 6 months = 0.5 years.