Simple Interest Calculator

To calculate monthly simple interest, use the formula SI = (P × R × T) / 100, where T is in months. Convert the annual interest rate to a monthly rate by dividing by 12.

The two types are ordinary simple interest, calculated using a 360-day year, and exact simple interest, calculated using a 365-day year. Both methods apply the standard formula but differ in time calculation.

The simple interest formula is SI = (P × R × T) / 100, where P is the principal, R is the annual interest rate, and T is the time in years.

No, in simple interest, the interest rate remains constant, and the interest is only calculated on the original principal amount throughout the tenure.

A simple interest calculator is an online tool that helps compute the total interest and final amount payable based on the principal, rate, and tenure.

Enter the principal amount, interest rate, and loan tenure into the calculator. It will instantly compute the interest and total payable amount.

No, simple interest cannot be negative. However, in cases of refunds or reversals, the payable amount may reduce, but the actual interest calculation remains positive.

Yes, when calculating months, the time (T) should be converted into years by dividing by 12. The formula remains the same but adjusted for the appropriate time frame.

Simple interest is calculated only on the principal amount, while compound interest is calculated on both the principal and accumulated interest, leading to higher returns over time due to the effect of compounding.