Simple Interest Calculator

Instantly calculate your future investment value with compound interest.

Enter your details to calculate.

What is Simple Interest?

Simple interest is calculated only on the initial principal, making it straightforward and predictable. It doesn't compound over time.

Formula

A = P(1 + rt)
Where:
P = principal amount
r = annual interest rate (decimal)
t = number of years
A = amount after time

Example

Investing $1,000 at an annual rate of 5% for 10 years will grow to $1,500 with $500 interest earned.