How to be a healthy weight

Calculate your BMI

The healthy weight range widely used by doctors is based on a measurement known as the Body Mass Index (BMI). You can work out your BMI if you know your weight and your height.

If you'd like to calculate your BMI yourself, follow these 3 steps:

  1. Work out your height in metres and multiply the figure by itself.
  2. Measure your weight in kilograms.
  3. Divide the weight by the height squared (the answer to question 1)

For example, you might be 1.6m (5ft 3in) tall and weigh 65kg (10st 3lb). The calculation would then be: 1.6 x 1.6 = 2.56. BMI would be 65 divided by 2.56 = 25.39.

NHS Choices BMI Healthy Weight calculator