Body Mass Index (BMI) Calculator

The BMI Calculator calculates your Body Mass Index, also known as Quetelet Index. The BMI determines your weight to height ratio, and displays your body fat content.

The Quetelet Index, also known as the Body Mass Index, was developed between 1831-1850 by Adolphe Quetelet whilst researching 'social physics'. Generally, a BMI chart calculates Body Mass Index as a function of weight (horizontal axis) and height (vertical axis) for different values of BMI.

Calculate your BMI

To calculate your BMI, enter your height (in cm) and weight (in kg) into the spaces provided below, then click on Find BMI to calculate your Body Mass Index

About the BMI

The Diet Guide BMI Calculator assesses how much your body weighs against your height. The excess weight or deficiency may, in part, be accounted for by bodily fat, however be aware that other factors may be involved such as muscularity, which can affect the final BMI calculation.