BMI calculator

The Body Mass Index (BMI) is a calculation of the ratio between your weight and your height. The formula is used to determine the amount of body fat you carry. The formula is your weight divided by your height squared (BMI = kg/m2)

What does your BMI mean?

Less than 18.5 = underweight
Between 18.5 to 24.9 = healthy weight
Between 25 to 29.9 = overweight
Over 29.9 = obese

If this calculator indicated you have a BMI of over 24.9 it is recommended you take advice from a health professional. You may have an increased risk of developing certain diseases, including:

• Hypertension
• Cardiovascular disease
• Adult-onset diabetes (type 2)
• Sleep apnoea
• Osteoarthritis
• Female infertility

It’s important to note that the BMI has its limitations because the calculations do not take the individual into consideration. Therefore athletes with higher amounts of muscle mass, women who are pregnant or lactating, growing children and the elderly who have lost muscle mass are advised not to use the BMI.

For personalised advice, see a dietitian or registered nutritionist.