Question 1

What is simple interest?

Accepted Answer

Simple interest is a method of calculating interest where the interest is earned only on the original principal amount, not on previously accumulated interest. It is calculated using the formula I = P × r × t.

Question 2

How is simple interest calculated?

Accepted Answer

Simple interest is calculated with I = P × r × t, where P is the principal (initial amount), r is the annual interest rate as a decimal, and t is the time in years. For example, $1,000 at 5% for 3 years earns $150 in interest.

Question 3

What is the difference between simple and compound interest?

Accepted Answer

Simple interest is calculated only on the principal. Compound interest is calculated on the principal plus any previously earned interest, so it grows faster over time. Savings accounts and investments typically use compound interest.

Question 4

When is simple interest used?

Accepted Answer

Simple interest is commonly used for short-term loans, car loans, personal loans, and some savings accounts. It is straightforward to calculate and understand, making it a common choice for fixed-term financial products.

Question 5

Is my data stored anywhere?

Accepted Answer

No. All calculations happen entirely in your browser. No data is sent to any server.

Simple Interest Calculator

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