Simple Interest Calculator
Whether you are calculating personal loans, fixed deposits, or looking for a quick local vaddi calculator, our tool gives you instant, accurate results on any mobile device.
Principal Amount
₹1,00,000
Total Interest
₹1,00,000
Total Amount
₹2,00,000
Adjust Parameters
Interest Breakdown
Total Amount
₹2,00,000
Cumulative Growth Over Time
💡 Hover or tap any bar to explore other years
Year-by-Year Interest Accrual
| Year | Principal | Interest Earned | Total Amount |
|---|---|---|---|
| 1 Year | ₹1,00,000 | ₹10,000 | ₹1,10,000 |
| 2 Years | ₹1,00,000 | ₹20,000 | ₹1,20,000 |
| 3 Years | ₹1,00,000 | ₹30,000 | ₹1,30,000 |
| 4 Years | ₹1,00,000 | ₹40,000 | ₹1,40,000 |
| 5 Years | ₹1,00,000 | ₹50,000 | ₹1,50,000 |
| 6 Years | ₹1,00,000 | ₹60,000 | ₹1,60,000 |
| 7 Years | ₹1,00,000 | ₹70,000 | ₹1,70,000 |
| 8 Years | ₹1,00,000 | ₹80,000 | ₹1,80,000 |
| 9 Years | ₹1,00,000 | ₹90,000 | ₹1,90,000 |
| 10 Years | ₹1,00,000 | ₹1,00,000 | ₹2,00,000 |
Understanding Simple Interest
Simple Interest is a quick and easy method of calculating the interest charge on a loan or the return on an investment. It is determined by multiplying the daily interest rate by the principal by the number of days that elapse between payments. The formula is straightforward: SI = (P × R × T) / 100. Because it does not compound, the interest earned or paid remains constant throughout the tenure.
Quickly compute simple interest for any principal amount, interest rate, and time period.
Simple Interest — Frequently Asked Questions
Everything you need to know about simple interest calculations.
Simple interest is interest calculated only on the principal amount, or on that portion of the principal amount that remains unpaid. The formula is Simple Interest (SI) = (Principal × Rate × Time) / 100. It does not compound, meaning you earn or pay the same amount of interest every year.
Simple interest is commonly used for short-term personal loans, automobile loans, and certain types of fixed-income instruments. However, most modern bank accounts and long-term investments use compound interest.
While simple interest is calculated only on the initial principal, compound interest is calculated on both the initial principal and the accumulated interest from previous periods. Compound interest grows exponentially, while simple interest grows linearly.
Yes. 'Vaddi' simply means interest. You can use this free online vaddi calculator to instantly calculate the exact monthly or yearly vaddi (interest) you will earn or pay on any principal amount.
No download is required. Our simple interest calculator is designed as a fast, mobile-friendly web app. You can bookmark this page on your phone's home screen to use it instantly like a native interest calculator app without taking up any storage space.
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