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Body mass index

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What is the BMI?
The BMI is an indirect measure of body composition, based on your height and weight. To find out your BMI enter your weight in kilograms and height in centimetres into our calculator.

Who shouldn't use the BMI?
People who should not use the BMI are: anyone under 18, pregnant or nursing women, frail and sedentary elderly people, competitive athletes or body builders.
If you fall under one of these categories, you should consult your doctor about any concerns over weight.

BODY MASS INDEX
Your height:   cm

Your weight:   kg

Need to know your weight in kg's? Calculate here
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What's your BMI?

TOOLS

Body Mass Index (BMI)The BMI is an indirect measure of body composition, based on your height and weight. Find out yours. MEASURE YOUR BMI Burn BarometerHow many kilojoules do you burn? Calorie CounterHow many do you consume? Energy EstimatorJust how much food should you be eating just to make you through each day? Due Date CalculatorFind out when your baby is due.