You can’t always tell if someone’s overweight just by looking at them. So weight management experts the world over use BMI (or body mass index) to find out if someone is a healthy weight or not.

What’s your BMI?
Move the sliders on the graph to match your height and weight. Then look underneath the graph to see if you are classed as underweight, a healthy weight, overweight or obese.

Is your BMI between 25 and 40?
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Measuring your middle
There are occasions when BMI isn’t totally accurate. Sometimes muscly people have a high BMI when they’re actually perfectly healthy – but we can easily check if this is the case by taking a waist measurement too.

Imperial Metric
Use the sliders above to calculate your BMI   Your BMI is , this is in the range.