BMI AI BMI Calculator (USA)

Enter weight in pounds and height in feet & inches to instantly get your BMI and health category.

Uses CDC/US standard BMI formula
703 × lb / in²
Your BMI
-- kg/m²

Enter your details to see your result.

Under Healthy Over Obese

AI BMI Calculator (USA)

Free Online BMI Calculator | Body Mass Index Tool

How to Use

This calculator is extremely simple to use and specifically designed for US units (pounds and inches).

  • Enter your weight in pounds (lb) (e.g. 170)
  • Fill height in feet (ft) and inches (in) (e.g. 5 ft 10 in)
  • Click Calculate BMI button
  • Get instant result + visual chart!
Formula: BMI = 703 × weight(lb) ÷ height(in)²
Uses CDC/US standard formula - 100% accurate!

Why Use This Tool?

Works perfectly for both men and women. Best tool for quick health assessment.

  • Instant Results: BMI + category in 2 seconds
  • Visual Chart: Easy-to-read health indicator
  • Mobile Friendly: Perfect on phones and tablets
  • USA Units: Feet/inches + pounds - no conversion needed
  • Health Categories: Clear Underweight/Normal/Overweight/Obese

BMI Categories (Adults 18+)

Standard adult BMI ranges:

  • Underweight: BMI < 18.5
  • Normal: BMI 18.5-24.9 ✓ Healthy
  • Overweight: BMI 25-29.9
  • Obese: BMI 30+ ⚠️
AI Powered Tool - Professional design with accurate CDC formula!

This AI BMI Calculator is for educational and informational purposes only and does not provide medical advice or diagnosis.

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