BMI 173 cm / 50 kg

BMI US Metric BMI UK Calories

Your Height

Your Weight

Your BMI position: 16.7 — Underweight (WHO)

severe

under

normal

over

obese

Your BMI Result

16.7 kg/m² Underweight

How your BMI was calculated

Formula: BMI = weight (kg) ÷ height (m)²

Your values: 50 kg ÷ (1.73 m)²

Height squared: (1.73)² = 2.9929 m²

Result: 50 ÷ 2.9929 = 16.7 kg/m²

⚖️ Ideal Weight Range

55.4 kg — 74.5 kg

For 1.73 m height (BMI 18.5-24.9)

🎯 Weight Goal

↑ Gain 5.4 kg

Target: 55.4 kg to reach healthy BMI

What does a BMI of 16.7 mean?

Your BMI of 16.7 kg/m² indicates you are underweight.

At 1.73 m (173 cm) and 50 kg, your weight is below the healthy range of 18.5-24.9. Being underweight can affect your immune system, bone health, and energy levels.

Recommended actions:

Aim for a target weight of 55.4-74.5 kg
Increase calorie intake with healthy, nutrient-rich foods
Include protein and strength exercises to build muscle
Consult a doctor if you're having difficulty gaining weight

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 kilograms would change your BMI category:

Weight	BMI	Category
46 kg -4	15.4	Severely Underweight
48 kg -2	16.0	Underweight
50 kg ← you	16.7	Underweight
52 kg +2	17.4	Underweight
54 kg +4	18.0	Underweight

This table shows how your BMI would change with different weights at your current height of 1.73 m.

BMI 16.7 (Underweight) — 173 cm / 50 kg — 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.

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