BMI Calculator (Imperial)
Formula: BMI = (Weight in lbs × 703) ÷ (Height in inches)²
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Disclaimer: All Converters in the Imperial Calculator have been reviewed by the relevant Imperial measurement system experts.
The Formula BMI Formula (Imperial):
BMI = (Weight (lbs)×703) ÷ Height (inches)2
Where:
- BMI = Body Mass Index (measures body fat based on height and weight)
- Weight (lbs) = Your weight in pounds
- Height (inches) = Your height in inches
- 703 = Conversion factor for the imperial system
Table of Contents
What Is a BMI Calculator (Imperial)?
A BMI calculator (imperial) measures body fat based on weight in pounds and height in inches. It helps assess if your weight is within a healthy range.

How to Calculate BMI Using the Imperial System
Use the formula:
BMI = (Weight in pounds / (Height in inches × Height in inches)) × 703
BMI Categories
- Underweight: Below 18.5
- Normal weight: 18.5–24.9
- Overweight: 25–29.9
- Obesity: 30 and above
Why Use an Imperial BMI Calculator?
- Accuracy for those using pounds and inches.
- Convenience for users familiar with the imperial system.
- Quick results for weight management.
Importance of Knowing Your BMI
- Health Monitoring: Detects weight-related health risks.
- Goal Setting: Helps create fitness goals.
- Progress Tracking: Measures changes over time.
Limitations of BMI
- Muscle Mass: BMI may misclassify muscular individuals.
- Age and Gender: Results vary with age and sex.
- Body Composition: It does not measure fat directly.
Tips for Maintaining a Healthy BMI
- Exercise regularly: Aim for at least 150 minutes weekly.
- Eat balanced meals: Include fruits, vegetables, and whole grains.
- Stay hydrated: Drink enough water daily.
- Get enough sleep: Aim for 7–9 hours nightly.
Conclusion
A BMI calculator (imperial) is a simple tool for tracking body weight and setting fitness goals. Use it to monitor your health and make informed lifestyle choices.