Home › Calculators › Simple Interest Calculator
Simple Interest Calculator
Calculate simple interest and the total amount.
How to use the Simple Interest Calculator
- Enter or paste your input in the tool above.
- The result updates instantly. Click the button where one is shown.
- Copy the result and use it anywhere.
About this simple interest calculator
This free online simple interest calculator helps you with simple interest calculator quickly and accurately. It works on mobile and desktop, needs no sign-up and processes everything locally in your browser.
Frequently asked questions
Is the Simple Interest Calculator free?
Yes. The simple interest calculator is 100% free with no sign-up, limits or watermarks.
Is my data safe when I use the simple interest calculator?
Yes. Everything runs in your browser. Your input is never uploaded to a server or stored.
What is the formula?
Simple interest = principal x rate x time / 100.
More free tools
Percentage CalculatorFind a percentage of a number and what percent one number is of another.Age CalculatorCalculate your exact age in years, months and days from your date of birth.BMI CalculatorCalculate your body mass index from weight and height.Loan EMI CalculatorEstimate your monthly loan payment, total interest and total cost.Tip CalculatorCalculate the tip and split the bill between people.Compound Interest CalculatorSee how your savings grow with compound interest over time.