Use this free online ideal body weight calculator to estimate a healthy target weight based on your gender and height, using the Devine formula. Enter your gender and height in centimeters to get an instant estimate of your ideal body weight in kilograms. This tool is intended for general informational purposes only and does not replace professional medical advice.
How to Use the Ideal Body Weight Calculator
Select your Gender from the dropdown.
Enter your Height (cm) in the height field.
Click "Calculate Ideal Weight" to view your estimated ideal body weight.
Frequently Asked Questions
This calculator uses the Devine formula. For men: Ideal Weight = 50 + 2.3 × (height in inches - 60). For women: Ideal Weight = 45.5 + 2.3 × (height in inches - 60). Your height in centimeters is automatically converted to inches before the calculation.
The Devine formula was designed for adults roughly 5 feet (152 cm) tall or taller. Below that height, the formula can produce a zero or negative result, so the calculator shows "N/A" along with a note explaining that the result isn't meaningful at that height.
If the height field is left blank, zero, or negative, the calculator displays an "Invalid input!" message and asks you to enter a valid height.
No. The result is a general estimate based on height and gender only - it doesn't account for factors like muscle mass, bone structure, or body frame. It's for general informational purposes and should not replace personalized advice from a healthcare professional.