Is BMI different for men?
No. BMI uses the same formula and the same categories for men and women. This page simply starts with a sample man: 5 ft 10 in (178 cm) and 180 lb (82 kg). His BMI is 25.8, just into the overweight range. His healthy range is about 129 to 174 lb (58.5 to 78.7 kg).
Is that man actually carrying too much fat? BMI can't say. That is the key thing to know about BMI for men.
When BMI gets men wrong
Muscle is heavy. A man who lifts weights, plays a power sport, or does hard physical work can have a BMI of 25 to 30 while being lean. BMI would call him overweight.
The reverse happens too. A man with little muscle and a large belly can have a "healthy" BMI and still carry more fat than is good for him. Fat around the belly carries more health risk than fat elsewhere.
That is why men should pair BMI with a second check:
- Waist-to-height ratio. NICE says to keep your waist to less than half your height. It works for muscular people. Try our waist-to-height ratio calculator.
- Body fat. Our body fat calculator for men needs only a tape measure.
- Muscle. Lifters can use the FFMI calculator to see muscle for their height.
BMI for men by age
There is no separate adult BMI chart by age. The CDC uses the same cut-offs from age 20 on. For men 65 and older, though, a 2014 review found that a BMI under 23 carried more risk than a BMI in the overweight range. Keeping muscle becomes a bigger priority with age.
For more on BMI, go back to the main BMI calculator. Talk to your doctor about a healthy weight for you.