Interest Calculator
Calculate simple interest and the total amount from a principal, annual rate, and time period.
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This simple-interest estimate excludes fees, taxes, and contract-specific interest conventions.
Your result
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Worked example
Sample inputs
- Currency
- Indian rupee (INR)
- Principal amount
- 100000
- Annual interest rate (%)
- 8
- Time period (years)
- 3
Simple interest: ₹24,000.00
- Principal: ₹1,00,000.00
- Total amount: ₹1,24,000.00
- Time period: 3 years
How this interest calculator works
Simple interest is principal × annual rate × time. Interest does not earn further interest in this model.
This simple-interest estimate excludes fees, taxes, and contract-specific interest conventions.
Frequently asked questions
Does simple interest compound?
No. The same original principal is used for every period, so previously earned interest does not earn more interest.
Can I use a decimal number of years?
Yes. Enter a value such as 1.5 to model one and a half years.