Simple Caculators

Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more coming soon.


How To Calculate Percentage?
  1. Determine the total or whole amount.
  2. Divide the number to be expressed as a percent by the total.
    In most cases, you'll divide the smaller number by the larger number.
  3. Multiple the resulting value by 100.
Caculate Percentage Formula
(small Amount Number) / (Total Amount Number) * (100%)

10/100 * 100 = 10%
How to calculate Body Mass Index (BMI)?

Body Mass Index is a simple calculation using a person's height and weight. The formula is BMI = kg/m2 where kg is a person's weight in kilograms and m2 is their height in metres squared. A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9.

How to calculate square feet ?

Measure the length and width, in feet, of each room. Then, multiply the length by the width to calculate that room's square feet.

For example: If a room is 10 feet by 50 feet, it is 500 square feet (10 x 50 = 500).

More Calculators

Coming soon for 100% Free