Ideal Body Weight Calculator

Professional medical formula to estimate ideal body weight for drug dosing, nutritional assessment, and medical evaluation. Based on the Hamwi (1964) and Devine (1974) formulas.

Your Information

Must be between 147cm (4'10") and 213cm (7')

Based on wrist circumference: Small (<15cm), Medium (15-17cm), Large (>17cm)

Your Ideal Body Weight Results

Your Ideal Body Weight

Enter your height to calculate your ideal body weight using medical formulas.

About the Formulas

Hamwi Formula (1964)

Developed by Dr. G.J. Hamwi as a quick method to determine ideal body weight for diabetic patients based on height and gender.

Men: 48 kg + 2.7 kg per inch over 5 feet

Devine Formula (1974)

Created by Dr. B.J. Devine for estimating ideal body weight for drug dosing, widely used in clinical practice.

Men: 50 kg + 2.3 kg per inch over 5 feet

Frame Size Adjustment

Small frame: -10%, Medium frame: no adjustment, Large frame: +10%. Based on wrist circumference measurement.

Clinical Use

These formulas are primarily used in medical settings for nutritional assessment, drug dosing, and determining percentage of ideal body weight.

Note: These formulas provide estimates for ideal body weight. Individual variations in body composition, muscle mass, and other factors mean that your personal healthy weight range may differ from these calculations.