💰 Simple Interest Calculator

Calculate simple interest on any principal. Find the interest earned, total amount, and monthly interest breakdown.

Simple Interest Calculator

Simple interest is calculated only on the original principal amount. Unlike compound interest, it does not take earned interest into account, making it simpler and often used for short-term loans.

Frequently Asked Questions

What is the difference between simple and compound interest?

Simple interest is calculated only on the original principal. Compound interest is calculated on both the principal and previously earned interest, so it grows faster over time.

When is simple interest used?

Simple interest is commonly used for short-term loans, car loans, some personal loans, treasury bills, and bonds. It is easier to calculate and understand than compound interest.

What is the simple interest formula?

Simple Interest = (Principal × Rate × Time) / 100. For example, $10,000 at 5% for 3 years gives (10000 × 5 × 3) / 100 = $1,500 interest.