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At 6'6" and 310 lbs, your BMI is 35.8, placing you in the Obese Class II category. A BMI of 35.8 falls in the Class II obesity range (35 to 39.9). This level is associated with higher risk of cardiovascular disease, type 2 diabetes, and joint issues.
35.8
BMI
Obese Class II
Category
160-215
Healthy range (lbs)
-95 lbs
To healthy high
BMI 35.8: Obese Class II
| BMI | Category | Weight (lbs) | Your Status |
|---|---|---|---|
| Below 18.5 | Underweight | Below 160 lbs | - |
| 18.5 to 24.9 | Normal | 160 to 215 lbs | Goal range |
| 25.0 to 29.9 | Overweight | 216 to 258 lbs | - |
| 30.0+ | Obese | Above 258 lbs | You are here |
Your BMI of 35.8 puts you in the Obese Class II category for someone 6'6".
To reach the upper boundary of the healthy range (215 lbs), you would need to lose approximately 95 lbs. A sustainable rate is 0.5 to 1 lb per week, which means roughly 127 weeks at a moderate calorie deficit.
Keep in mind that BMI does not account for muscle mass. Two people at 6'6" and 310 lbs can have very different body compositions. Body fat percentage is a more precise indicator of health risk.
A BMI of 35.8 falls in the Obese Class II range. A BMI of 35.8 falls in the Class II obesity range (35 to 39.9). This level is associated with higher risk of cardiovascular disease, type 2 diabetes, and joint issues. BMI is a population-level screening tool, not a diagnostic measure. Factors like waist circumference, body fat percentage, blood pressure, and cholesterol provide a more complete picture of metabolic health.
You would need to lose approximately 95 lbs to reach the high end of the healthy range. The healthy BMI range (18.5 to 24.9) corresponds to 160 to 215 lbs for someone 6'6". A sustainable rate of weight loss is 0.5 to 1 lb per week through a calorie deficit of 250 to 500 calories per day.
BMI is a useful screening tool but has real limitations. It does not distinguish between muscle and fat, so muscular athletes often show elevated BMI despite low body fat. It also does not account for where fat is stored. Waist-to-height ratio and body fat percentage are more precise measures. Use BMI as a starting point, not a definitive health verdict.
For someone 6'6", the healthy weight range based on BMI is 160 to 215 lbs. At 160 lbs, BMI is 18.5 (lower boundary of healthy). At 215 lbs, BMI is 24.9 (upper boundary of healthy). Below 160 lbs is underweight; above 215 lbs is overweight.
To reach low end (160 lbs)
150 lbs to lose
To reach high end (215 lbs)
95 lbs to lose
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