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What is BMI?

BMI or Body Mass Index is a calculation to see if your bodyweight is healthy. It uses you weight and height.
Use our simple BMI calculator below:

Your BMI is

BMI ranges

  • below 18.5 – you’re in the underweight range
  • between 18.5 and 24.9 – you’re in the healthy weight range
  • between 25 and 29.9 – you’re in the overweight range
  • between 30 and 39.9 – you’re in the obese range

According to the NHS.

Be aware, although your BMI  is a good indication as to if you’re carrying too much weight. It cannot tell you if you are carrying too much fat.

This means:

  • If you are a muscular adult you may be classed “overweight” or “obese” even though your body fat is low.
  • As you get older and lose muscle, you may fall into the “healthy weight” range even though you may be carrying excess fat.

whats my bmi