BMI Result: 6ft 4in, 329 lbs (BMI 40.0) - Male

According to CDC and WHO standards, a BMI of 40.0 is classified as Obese.

Quick answer: A 6ft 4in male weighing 329 lbs has a BMI of 40.0, classified as Obese by CDC and WHO standards. The healthy weight range for this height is approximately 152–205 lbs.

A male who is 6ft 4in tall and weighs 329lbs has a BMI of 40.0, which falls into the Obese category used by the CDC and WHO for adults.

40.0
Obese
⚠️ BMI is a screening tool, not a diagnostic. It does not measure body fat directly. Learn more about how BMI is used.
Underweight Normal Overweight Obese
CategoryBMI Range
Underweight< 18.5
Obese ≥ 30
Obese≥ 30

Healthy weight range for 6ft 4in: 152 lbs – 205 lbs

Metric: 193.0 cm, 149.2 kg

📏 Healthy waist circumference for your height: 35" – 40" (below 40" for male)

So you're 6ft 4in and weigh 329lbs. Your BMI is 40.0, which falls into the Obese category according to CDC and WHO standards. Let's break down what this means for your health.

Adult BMI classification: CDC & WHO standard (effective 1998-present).

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Understanding Your BMI

A BMI of 30 or above indicates obesity. The CDC reports that this range is associated with a 50-60% higher risk of cardiovascular disease and type 2 diabetes. Comprehensive lifestyle intervention and medical guidance are strongly recommended.

Source: CDC Adult BMI Guidelines (2024)

What This Means for Your Height

For men over 6ft, BMI may overestimate body fat due to higher muscle mass. Consider waist circumference and body fat percentage for a more accurate assessment.

Weight & Threshold

You are exactly at the threshold between BMI categories.

⬇️ Losing approximately 82.2 lbs would bring you to the Overweight BMI threshold.

Waist & Health

The CDC recommends that men keep waist circumference below 40 inches. A waist-to-height ratio below 0.5 is also associated with lower health risks.

Source: CDC Adult BMI Guidelines (2024)

Age Context

For adults 45-64, metabolic health becomes increasingly important. At 58 years old, a man at 6ft 4in and 329lbs has a BMI of 40.0, which falls into the Obese category.

At age 58, maintaining a healthy weight is particularly important. Research shows that adults over 45 with a BMI in the obese range have a significantly higher risk of metabolic syndrome and cardiovascular disease.

👉 Calculate your Body Fat Percentage for a more complete health assessment.

👉 Try our Athlete BMI Calculator if you have higher muscle mass.

Health Analysis

A BMI of 40.0 for a male with height 6ft 4in and weight 329lbs falls into the Obese category.

Recommendations

General Health

A BMI of 40.0 is in the obesity range defined by the CDC and WHO. This range is associated with a higher risk of cardiovascular disease and type 2 diabetes. Comprehensive lifestyle intervention and medical guidance are strongly recommended.

Monitoring

In addition to BMI, pay attention to waist circumference. The CDC recommends males stay under 40 inches. Regular tracking of your measurements over time provides the most useful insight into your health trends.

Next Steps

If you're concerned about your weight or body composition, a healthcare provider can offer personalized guidance based on your full health profile.

Personalized Notes

Monitoring

At 6ft 4in, schedule a comprehensive health checkup with your doctor. For men at this height, the CDC recommends keeping waist circumference below 40 inches. Regular monitoring of blood pressure and blood sugar is also important.

Diet & Nutrition

At 6ft 4in and 329lbs, a BMI of 40.0 falls into the obesity category for men. Working with a registered dietitian to develop a structured, sustainable eating plan is recommended.

Always consult a healthcare provider for personalized medical advice.

Frequently Asked Questions

How do I calculate my BMI at 6ft 4in and 329lbs?
BMI is calculated as weight (lbs) × 703 ÷ height (in)². For a 6ft 4in man at 329lbs, the calculation is 329 × 703 ÷ 76² = 40.0, which is Obese.
How does a BMI of 40.0 affect health for a 6ft 4in man?
At 6ft 4in with a BMI of 40.0 (Obese), the obesity range is associated with a 50-60% higher risk of cardiovascular disease and type 2 diabetes. Maintaining a healthy lifestyle is key to overall well-being.
What else should I track besides BMI for a 6ft 4in man?
In addition to BMI, waist circumference and body composition give a clearer picture of health. For a man at 6ft 4in, keeping waist size below 40 inches is an important goal supported by CDC research.
What percentage of men have a BMI of 40.0 at 6ft 4in?
The CDC reports that approximately 25-30% of men fall into the Obese BMI category. Your BMI of 40.0 at 6ft 4in and 329lbs places you there.

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Related Tools & Articles

💡 About this calculation: BMI = (329 × 703) ÷ (76 × 76) = 40.0 | Metric: 193.0 cm, 149.2 kg

📖 Recommended reading:

Based on CDC and WHO adult BMI standards. This information is for educational purposes and does not replace professional medical advice.

Editorial Review: This page was generated by the BMI Calculator Web Editorial Team and reviewed at template and content-pool level for accuracy and guideline alignment by Dr. Sarah K. Johnson, PhD, RD. All content is aligned with current WHO, CDC, and NIH guidelines.

Published: 2026-10-05

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