BMI 5'8" / 100 lbs

BMI US Metric BMI UK Calories
ft in
lbs

Your BMI position: 15.2 — Severely Underweight (WHO)

Your BMI Result
15.2 kg/m² Severely Underweight

Your BMI Results

How your BMI was calculated

Formula: BMI = (weight × 703) ÷ height²
Your values: (100 lbs × 703) ÷ (68 in)²
Height squared: (68)² = 4624 in²
Result: 70,300 ÷ 4624 = 15.2 kg/m²

⚖️ Ideal Weight Range

122 lbs — 164 lbs

For 5'8" height (BMI 18.5-24.9)

🎯 Weight Goal

↑ Gain 22 lbs

Target: 122 lbs to reach healthy BMI

What does a BMI of 15.2 mean?

Your BMI of 15.2 kg/m² indicates you are severely underweight.

At 5'8" and 100 lbs, your body weight is significantly below the healthy range. A BMI below 16 may indicate malnutrition or an underlying health condition that requires medical attention.

Recommended actions:

  • Consult a healthcare provider to rule out underlying health issues
  • Work with a registered dietitian to develop a healthy weight gain plan
  • Focus on nutrient-dense foods and regular meals
  • Consider strength training to build muscle mass safely

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
90 lbs -10 13.7 Severely Underweight
95 lbs -5 14.4 Severely Underweight
100 lbs ← you 15.2 Severely Underweight
105 lbs +5 16.0 Severely Underweight
110 lbs +10 16.7 Underweight

This table shows how your BMI would change with different weights at your current height of 5'8".

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BMI 15.2 (Severely Underweight) — 5'8" / 100 lbs
BMI 15.2 (Severely Underweight) — 5'8" / 100 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.

Popular BMI Calculations

Quick links to common height and weight combinations:

5'7" / 190 lbs BMI 29.8 5'8" / 260 lbs BMI 39.5 5'10" / 120 lbs BMI 17.2 6'0" / 170 lbs BMI 23.1 6'1" / 135 lbs BMI 17.8 6'2" / 210 lbs BMI 27 6'4" / 230 lbs BMI 28 6'6" / 170 lbs BMI 19.6 4'11" / 190 lbs BMI 38.4 5'1" / 85 lbs BMI 16.1 5'2" / 150 lbs BMI 27.4 5'4" / 185 lbs BMI 31.8

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