Simple Interest Calculator
Calculate the direct interest earned or paid on a principal sum over a given time duration and flat rate.
Simple Interest Summary
Basic flat interest calculation results:
Principal Sum
The initial capital sum borrowed or lent.
Flat Interest
The calculated simple interest over the chosen duration.
Total Value
The sum of the principal and interest components.
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How is it calculated?
SI = \frac{P \times R \times T}{100}Where SI is Simple Interest, P is Principal Amount, R is annual rate of interest, and T is time in years.
Worked Examples
₹2 Lakh Loan for 4 Years at 8%
The simple interest is calculated as (200,000 * 8 * 4) / 100, which equals ₹64,000. Total amount to return is ₹2,64,000.
₹50,000 Deposit for 2 Years at 5%
Simple interest earned is ₹5,000. The final balance matures to ₹55,000.
Frequently Asked Questions
What is the main difference between simple and compound interest?
Simple interest is calculated only on the principal amount, whereas compound interest is calculated on the principal plus any accumulated interest.
When is simple interest typically used?
Simple interest is commonly used in short-term personal loans, car loans, retail sales contracts, and basic savings accounts.
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Results are estimates and should not be considered financial advice.