What is Simple Interest?

Simple interest is calculated only on the principal amount, or the portion of the principal amount that remains unpaid. It excludes the effect of compounding.

Principal: The initial amount of money.
Rate: The interest rate per period.
Time: The duration of the loan or investment.

How does this tool work?

Using it is simple: Enter your values into the provided fields. The calculator processes this data immediately and shows you the precise result. No installation or registration required.

Why use this calculator?

Perfect for personal financial planning, investment decisions, or quick checks. Our tools are designed to handle complex calculations for you and provide instant answers. Optimized for desktop, tablet, and smartphone.

Frequently Asked Questions (FAQ)

Is this calculator free?

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Is my data saved?

No. All calculations happen directly in your browser. No personal data is sent to our servers.