BMI Calculator (Body Mass Index)
Calculate your BMI and see where you fall on the health spectrum. Free BMI calculator with healthy weight range for your height.
How this calculator works
BMI compares your weight with your height. It is a population screening tool, not a body composition measurement, and it cannot tell muscle from fat.
If you lift regularly, expect BMI to overstate your risk. Pair it with a waist measurement or a body fat estimate for a fuller picture.
Frequently asked questions
Is BMI accurate for muscular people?
No. Muscle weighs more than fat for the same volume, so trained lifters often land in the 'overweight' band while being lean.
What is a healthy BMI range?
18.5 to 24.9 is the standard healthy band, 25 to 29.9 is classed as overweight, and 30 and above as obese.
What should I use instead of BMI?
Waist circumference, a body fat estimate, and how your clothes and lifts are changing over months.
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