Body Mass Index - BMI Calculator
With Vertex42's online BMI Calculator, you can either calculate your Body Mass Index based on height and weight, or you can enter your desired BMI and solve for your goal weight. It also shows the result within a BMI Scale. Check out our BMI Chart if you are looking for something you can print that will show BMI for multiple heights and weights.
The BMI Formula
Body Mass Index is defined as your weight divided by the square of a your height, using the metric units kg/m^2. The BMI formula does not apply to children (see references below). The BMI formula is therefore very simple:
- Metric Units: BMI = Weight[kg] / ( Height[m] x Height[m] )
- English Units: BMI = 703 x Weight[lb] / ( Height[in] x Height[in] )