BMI Result: 6ft 3in, 113 lbs (BMI 14.1) - Male
According to CDC and WHO standards, a BMI of 14.1 is classified as Underweight.
A male who is 6ft 3in tall and weighs 113lbs has a BMI of 14.1, which falls into the Underweight category used by the CDC and WHO for adults.
| Category | BMI Range |
|---|---|
| Underweight | < 18.5 |
| Underweight | < 18.5 |
| Obese | ≥ 30 |
Healthy weight range for 6ft 3in: 148 lbs – 199 lbs
Metric: 190.5 cm, 51.3 kg
📏 Healthy waist circumference for your height: 35" – 40" (below 40" for male)
So you're 6ft 3in and weigh 113lbs. Your BMI is 14.1, which falls into the Underweight category according to CDC and WHO standards. Let's break down what this means for your health.
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Change your height or weight to see how your BMI changes.
Understanding Your BMI
A BMI below 18.5 may indicate nutritional insufficiency. According to the CDC, this range is associated with increased risk of bone density loss and immune function decline. Consulting a healthcare provider is recommended for a thorough nutritional assessment.
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 35.2 lbs would bring your BMI to 18.5, the start of the next category.
⬆️ Gaining approximately 35.2 lbs would put you in the Normal BMI range.
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.
Age Context
For adults 45-64, metabolic health becomes increasingly important. At 58 years old, a man at 6ft 3in and 113lbs has a BMI of 14.1, which falls into the Underweight category.
For adults in this age range, maintaining stable weight and regular physical activity is key to preserving metabolic health.
👉 Calculate your Body Fat Percentage for a more complete health assessment.
👉 Try our Athlete BMI Calculator if you have higher muscle mass.
Health Analysis
Recommendations
General Health
A BMI of 14.1 is below the CDC and WHO healthy range of 18.5-24.9. This may indicate nutritional insufficiency. Consulting a healthcare provider is recommended for a thorough nutritional assessment.
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.
Frequently Asked Questions
What health risks are associated with a BMI of 14.1 for a 6ft 3in man?
How common is a BMI of 14.1 for a 6ft 3in man?
How do I calculate my BMI at 6ft 3in and 113lbs?
What else should I track besides BMI for a 6ft 3in man?
Related Tools & Articles
💡 About this calculation: BMI = (113 × 703) ÷ (75 × 75) = 14.1 | Metric: 190.5 cm, 51.3 kg
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Published: 2026-09-09