BMI for 6'4" 320 lbs
Calculate your Body Mass Index for a height of 6'4" and weight of 320 lbs.
Your BMI
38.9
Obese Class II
A person 6'4" tall weighing 320 lbs needs to lose 116 lbs to reach a healthy BMI of 24.9 or lower.
Use our Weight Loss Calculator to create a safe plan to lose 116 lbs.
Healthy Range
152 – 204 lbs
for 6'4" (BMI 18.5–24.9)
Your Status
Obese Class II
BMI 38.9
Should You Lose Weight?
Yes — lose 116 lbs
Health Assessment for 6'4" 320 lbs
Class II obesity carries high risk for metabolic syndrome, heart disease, stroke, and multiple comorbidities. Medical supervision for weight loss is strongly advised.
To start your weight loss journey, use our weight loss calculator to set safe targets. Our TDEE calculator can help you understand your daily calorie needs, and our calorie calculator can create a customized deficit plan.
Healthy BMI Weight Range for 6'4"
For a person who is 6'4" tall, the healthy BMI range of 18.5 to 24.9 corresponds to a weight range of 152 to 204 lbs. Your current weight of 320 lbs places you in the Obese Class II category.
BMI for 320 lbs at Similar Heights
BMI for 6'4" at Nearby Weights
BMI Classification Table
| Classification | BMI Range | Weight Status |
|---|---|---|
| Underweight | < 18.5 | Below healthy weight |
| Normal | 18.5 – 24.9 | Healthy weight |
| Overweight | 25 – 29.9 | Excess weight |
| Obese Class I | 30 – 34.9 | Moderate obesity |
| Obese Class II | 35 – 39.9 | Severe obesity |
| Obese Class III | 40+ | Very severe obesity |
Frequently Asked Questions
Q: What does a BMI of 38.9 mean for someone 6'4" tall?
A BMI of 38.9 for a 6'4" individual classifies you as Obese Class II. Class II obesity carries high risk for metabolic syndrome, heart disease, stroke, and multiple comorbidities. Medical supervision for weight loss is strongly advised.
Q: What is the ideal weight for someone 6'4" tall?
For a height of 6'4", the healthy weight range is 152 to 204 lbs (BMI 18.5 to 24.9). Use our BMI calculator to check any weight.
Q: How is BMI calculated for 6'4" 320 lbs?
BMI = (weight in lbs ÷ height in inches²) × 703. For 6'4" (76 inches) and 320 lbs: (320 ÷ 76²) × 703 = 38.9.
Q: How can I lower my BMI from 38.9 to a healthy range?
To reach a healthy BMI, you would need to lose approximately 116 lbs. A safe rate is 0.5 to 2 lbs per week through a moderate calorie deficit. Use our weight loss calculator to create a personalized plan.