BMI Calculator

The WHO defines normal weight as BMI 18.5 to 24.9. Below 18.5 is underweight, 25.0-29.9 is overweight, and 30.0 or above is obese. For most adults, maintaining a BMI within 18.5 to 24.9 is associated with the lowest risk of weight-related health conditions including heart disease, type 2 diabetes, and hypertension.

At 5'10" (178 cm), a healthy BMI (18.5-24.9) corresponds to a weight of 132 to 174 lbs (60 to 79 kg). The midpoint is about 153 lbs (69.5 kg) at a BMI of 22. Your ideal weight within this range depends on muscle mass, body frame, and overall health markers.

BMI can overestimate body fat in muscular individuals because it cannot distinguish muscle from fat. A 6-foot male weighing 210 lbs with 12% body fat has a BMI of 28.5 ("overweight"), despite being lean. For athletes, body fat percentage is a better health indicator than BMI.

Children and teens (ages 2-19) use age and sex-specific BMI percentiles rather than fixed adult categories. A child in the 85th-94th percentile is considered overweight, and the 95th percentile or above is obese. Use a pediatric BMI calculator for accurate child assessment.

Yes. Research shows that Asian populations may experience higher health risks at lower BMI values. The WHO Western Pacific Region suggests overweight begins at BMI 23 (not 25) and obesity at BMI 25 (not 30) for Asian adults. Discuss appropriate cutoffs with your healthcare provider.

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