Ideal Body Weight (IBW) Calculator
Your Results
Estimated Ideal Weight (Devine Formula): — kg
Healthy Weight Range (BMI 18.5 – 25): — kg
Note: These formulas provide estimates for adults. Individual health needs may vary based on muscle mass and bone density.
Understanding Your Ideal Body Weight (IBW)
Ideal Body Weight is a metric used by healthcare professionals to determine a healthy target weight for individuals based on their height and gender. While no single number is perfect for everyone, these calculations provide a clinically recognized baseline for medical dosages and health assessments.
How is Ideal Weight Calculated?
This calculator primarily uses the Devine Formula, which is the most widely accepted method in clinical settings. The logic is as follows:
- For Men: 50.0 kg + 2.3 kg for every inch over 5 feet.
- For Women: 45.5 kg + 2.3 kg for every inch over 5 feet.
Practical Examples
To help you understand how height impacts the calculation, consider these realistic scenarios:
- Male (180 cm / approx. 5'11"): A 180 cm male is roughly 11 inches over 5 feet. The calculation would be 50 kg + (11 * 2.3) = 75.3 kg.
- Female (165 cm / approx. 5'5″): A 165 cm female is roughly 5 inches over 5 feet. The calculation would be 45.5 kg + (5 * 2.3) = 57 kg.
Why the Healthy Range Matters
Because the IBW formula does not account for muscle mass or body fat percentage, we also provide a Healthy Weight Range based on Body Mass Index (BMI). A BMI between 18.5 and 25 is generally considered healthy. If you are an athlete with high muscle density, your "ideal" weight may naturally be higher than the Devine formula suggests.