Math & Everyday
Simple interest
Interest calculated only on the original principal, not on accumulated interest. It equals principal times rate times time, growing linearly rather than compounding.
Put it to use
Related calculators
Math & EverydayDiscount Calculator
Find the sale price and money saved from an original price and a percent-off discount.
Open calculator →Math & EverydayPercentage CalculatorWork out percentages three ways: X% of Y, X is what % of Y, and percent change.
Open calculator →Math & EverydayAge CalculatorCalculate exact age in years, months, and days between a birth date and any date.
Open calculator →Keep learning