What does your result mean?

For any height there is a range of healthy weights. BMI is classified in the following way:

A BMI of less than 18.5 indicates you are underweight. You may need to gain weight.

If your BMI is 19 to 24.9, you're are a healthy weight, and should aim to stay that way.

A BMI of 25 to 29 is defined as overweight. It's a good idea to lose some weight for your health's sake, or at least aim to prevent further weight gain.

A BMI of over 30 to 39.9 is defined as obese and means your health is at risk. Losing weight will improve your health.

If your BMI is between 30 and 39.9, why not ask your GP or practice nurse about Barnsley's free weight management sessions called Weight Wise Barnsley? Sessions are available across Barnsley. Click here to find out more about Weight Wise Barnsley.

A BMI of over 40 is defined as very obese and means your health your health will benefit from specialist medical and dietary advice - especially before embarking on any kind of exercise regimen.

Note: BMI is not always a good reflection of body fatness. A very muscular person might have a high BMI when in fact their body fat is at a healthy level, as muscle weighs more than fat.