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BMI Calculator – Feet, Inches & Pounds

Use Calcuron’s free BMI calculator to estimate your Body Mass Index (BMI) using height in feet and inches and weight in pounds. The result is calculated using the standard adult BMI formula and classification ranges.

⚖️ Height in ft/in, weight in lb 📊 Standard adult BMI categories 🛡 Runs only in your browser

Calculate your BMI

Enter your height and weight below, then select “Calculate BMI” to see your estimated Body Mass Index and category. This calculator is intended for adults and does not replace medical advice.

Enter height in feet and inches (for example: 5 ft 9 in).
Enter your body weight in pounds.
Enter your height and weight, then click “Calculate BMI”.

How this BMI calculator works

Even though you enter height in feet/inches and weight in pounds, the calculation is performed using the standard metric BMI formula:

BMI = weight(kg) ÷ [height(m)]²

where:
height(m) = total inches × 0.0254
weight(kg) = pounds × 0.45359237

Adult BMI classification (World Health Organization)

  • Underweight: BMI < 18.5
  • Normal weight: BMI 18.5 – 24.9
  • Overweight: BMI 25.0 – 29.9
  • Obesity: BMI ≥ 30.0

Important notes

BMI is a rough screening tool, not a diagnosis. It does not directly measure body fat and may be less accurate for athletes, very muscular individuals, older adults, or people with certain health conditions.

For personal health decisions, always consider talking with a healthcare professional who can interpret BMI along with other factors such as waist circumference, blood pressure, labs, and medical history.

Looking for more tools? Visit the Calcuron home page to use our age calculator, loan calculator, unit converter, tip calculator, password generator, scientific calculator, and more.