BMI Calculator
Calculate your Body Mass Index and see which WHO weight category it falls into.
How to use the bmi calculator
- Choose metric or imperial units.
- Enter your weight and height.
- Click Calculate to get your BMI and category.
What BMI is good for
BMI is a quick population-level screening tool for under- and over-weight, not a diagnosis. It works best alongside measures of body composition and waist circumference.
Frequently asked questions
How is BMI calculated?
BMI equals your weight in kilograms divided by your height in metres squared. A 75 kg person who is 1.78 m tall has a BMI of about 23.7.
Is BMI accurate for athletes?
Not very. BMI cannot tell muscle from fat, so muscular athletes often score as overweight despite low body fat. Pair it with body-fat or waist measures.
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