BMI Calculator — imperial
Calculate your Body Mass Index (BMI) using height and weight. Supports metric and imperial units.
How to use BMI Calculator
Select Your Measurement Unit
Click the toggle switch at the top of the calculator to choose between 'Metric' (kg, cm) or 'Imperial' (lbs, inches) units. The input fields will update automatically to match your selected unit system.
Enter Your Height
Type your height in the 'Height' field. For metric, enter centimeters (e.g., 175). For imperial, enter feet and inches separately (e.g., 5 feet 9 inches) or total inches (e.g., 69).
Enter Your Weight
Input your weight in the 'Weight' field. For metric, enter kilograms (e.g., 72). For imperial, enter pounds (e.g., 160). Ensure values are positive numbers only.
View Your BMI Result
Click the blue 'Calculate BMI' button. Your BMI number appears instantly below with a color-coded category: blue (underweight <18.5), green (normal 18.5-24.9), yellow (overweight 25-29.9), or red (obese ≥30).
Interpret Your Category
Read the descriptive text showing your BMI category and what it means for your health. Click 'Clear' to reset and calculate again with different measurements.
Frequently Asked Questions
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