BMI 6'5" / 340 lbs

ft in
lbs

Your BMI position: 40.3Obese (WHO)

Your BMI Result
40.3 kg/m² Obese

Your BMI Results

How your BMI was calculated

Formula: BMI = (weight × 703) ÷ height²
Your values: (340 lbs × 703) ÷ (77 in)²
Height squared: (77)² = 5929 in²
Result: 239,020 ÷ 5929 = 40.3 kg/m²

⚖️ Ideal Weight Range

156 lbs 210 lbs

For 6'5" height (BMI 18.5-24.9)

🎯 Weight Goal

Lose 130 lbs

Target: 210 lbs to reach healthy BMI

What does a BMI of 40.3 mean?

Your BMI of 40.3 kg/m² indicates obesity.

At 6'5" and 340 lbs, your BMI is 30 or above. Obesity significantly increases health risks including heart disease, type 2 diabetes, certain cancers, and joint problems.

Recommended actions:

  • Consult your healthcare provider for a comprehensive health assessment
  • Target weight: 156-210 lbs (you need to lose 130 lbs)
  • Start with small, sustainable changes—even 5-10% weight loss improves health
  • Work with healthcare professionals on diet, exercise, and possibly medical treatment

Remember: BMI is a screening tool, not a diagnostic measure. It doesn't account for muscle mass, bone density, or where fat is distributed. Always consult healthcare professionals for personalized health advice.

How weight changes affect your BMI

See how gaining or losing a few pounds would change your BMI category:

Weight BMI Category
330 lbs -10 39.1 Obese
335 lbs -5 39.7 Obese
340 lbs ← you 40.3 Obese
345 lbs +5 40.9 Obese
350 lbs +10 41.5 Obese

This table shows how your BMI would change with different weights at your current height of 6'5".

Share This Calculation

BMI 40.3 (Obese) — 6'5" / 340 lbs
BMI 40.3 (Obese) — 6'5" / 340 lbs — conversion chart

This BMI calculator is provided for informational purposes only and does not replace professional medical advice. Learn more about BMI, limitations, and health recommendations.