BMI Result: 6ft 4in, 313 lbs (BMI 38.1) - Male

According to CDC and WHO standards, a BMI of 38.1 is classified as Obese.

Quick answer: A 6ft 4in male weighing 313 lbs has a BMI of 38.1, 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 313lbs has a BMI of 38.1, which falls into the Obese category used by the CDC and WHO for adults.

38.1
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, 142.0 kg

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

So you're 6ft 4in and weigh 313lbs. Your BMI is 38.1, 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

Gaining approximately 15.6 lbs would bring your BMI to 40, the start of the next category.

⬇️ Losing approximately 66.6 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 61 years old, a man at 6ft 4in and 313lbs has a BMI of 38.1, which falls into the Obese category.

At age 61, 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 38.1 for a male with height 6ft 4in and weight 313lbs falls into the Obese category.

Recommendations

General Health

A BMI of 38.1 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

Goals

For a man at 6ft 4in, the CDC recommends a healthy weight range of 152-204lbs. At 313lbs, you're above this range. Working with a healthcare provider to set a safe weight loss goal is recommended.

Health Risks

With a BMI of 38.1 for a 6ft 4in man, the obesity range is associated with a 40-50% higher risk of cardiovascular disease and type 2 diabetes. Comprehensive lifestyle intervention and medical guidance are strongly recommended.

Always consult a healthcare provider for personalized medical advice.

Frequently Asked Questions

How do I calculate my BMI at 6ft 4in and 313lbs?
BMI is calculated as weight (lbs) × 703 ÷ height (in)². For a 6ft 4in man at 313lbs, the calculation is 313 × 703 ÷ 76² = 38.1, which is Obese.
How does a BMI of 38.1 affect health for a 6ft 4in man?
At 6ft 4in with a BMI of 38.1 (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.
How can a 6ft 4in man maintain a healthy weight?
For a man at 6ft 4in, maintaining weight around 152-204lbs is recommended. Work with a registered dietitian to create a sustainable meal plan focusing on whole, unprocessed foods.
What percentage of men have a BMI of 38.1 at 6ft 4in?
The CDC reports that approximately 25-30% of men fall into the Obese BMI category. Your BMI of 38.1 at 6ft 4in and 313lbs places you there.

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Related Tools & Articles

💡 About this calculation: BMI = (313 × 703) ÷ (76 × 76) = 38.1 | Metric: 193.0 cm, 142.0 kg

📖 Recommended reading:

Content references CDC and WHO guidelines. For informational purposes only, not 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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