Simple Interest Calculator
Calculate simple interest instantly using principal, rate and time. Free Simple Interest Calculator for loans & investments in India.
A Simple Interest Calculator helps you quickly calculate the interest earned or paid on a principal amount over a fixed time period. It is widely used for short-term loans, personal borrowings, and fixed investment calculations.
What is Simple Interest?
Simple Interest is calculated only on the principal amount. Unlike compound interest, it does not compound over time.
Where is Simple Interest Used?
- Short-term loans
- Gold loans
- Personal borrowings
- Fixed lending agreements
Why Use a Simple Interest Calculator?
- Quick interest estimation
- Loan cost understanding
- Investment return estimation
- Financial planning
Simple Interest vs Compound Interest
Simple interest remains constant every year, while compound interest grows because interest is calculated on accumulated interest.
Benefits of Simple Interest
- Easy to calculate
- Transparent repayment structure
- Lower cost for short durations
Use this Simple Interest Calculator to estimate interest accurately and make informed financial decisions.
Simple Interest Formula
The formula to calculate simple interest is:
SI = (P × R × T) / 100
- P = Principal amount
- R = Annual interest rate (%)
- T = Time in years
Example Calculation
If you invest ₹1,00,000 at 8% interest for 5 years:
SI = (100000 × 8 × 5) / 100 = ₹40,000
Total Amount = ₹1,40,000
Frequently Asked Questions
What is the formula of simple interest?
Simple interest formula is SI = (P × R × T) / 100.
How is simple interest different from compound interest?
Simple interest is calculated only on principal, while compound interest includes accumulated interest.
Can simple interest be calculated monthly?
Yes, but annual rate must be converted to monthly equivalent.
Is simple interest good for loans?
Simple interest loans are cheaper for short durations compared to compound loans.
Where is simple interest commonly used?
It is commonly used in short-term loans and informal lending agreements.