Metric Units
Height
cm
Weight
kg
Imperial Units
Height (Feet)
ft
Height (Inches)
in
Weight
lbs
0.0
Normal Weight
Your BMI indicates a healthy weight
Underweight
< 18.5
Normal
18.5 - 24.9
Overweight
25.0 - 29.9
Obese
≥ 30.0
Health Information
Based on your BMI calculation, here are some health insights...
BMI Reference Information
What is BMI?
BMI (Body Mass Index) is a measure that uses your height and weight to work out if your weight is healthy.
Formula: BMI = weight (kg) / height (m)²
Example: If you are 170cm tall and weigh 70kg:
BMI = 70 ÷ (1.7 × 1.7) = 24.2
BMI Categories
Underweight: BMI less than 18.5
Normal weight: BMI 18.5-24.9
Overweight: BMI 25-29.9
Obese: BMI 30 or greater
Unit Conversions
Height:
1 foot = 30.48 cm
1 inch = 2.54 cm
Weight:
1 pound (lb) = 0.453592 kg
1 kg = 2.20462 pounds
Important Notes
BMI is a useful screening tool but has limitations:
• Doesn't distinguish between muscle and fat
• May not be accurate for athletes or elderly
• Consult healthcare professionals for personalized advice