Simple Interest Calculator

What is simple interest?

Simple interest is interest calculated only on the original principal amount, not on accumulated interest.

What is the simple interest formula?

Simple interest is principal multiplied by annual rate multiplied by time. Maturity amount is principal plus simple interest.

How is simple interest different from compound interest?

Compound interest adds interest back to principal, while simple interest keeps interest separate and calculates only on the original principal.

When should I use a simple interest calculator?

Use it for loans, deposits, or examples where interest is not reinvested or compounded.

Does simple interest include taxes or fees?

No. The calculator estimates interest before taxes, fees, penalties, partial withdrawals, or product-specific terms.