Ideal Weight Calculator
Find your ideal body weight range based on height and sex using the most widely validated clinical formulas (Hamwi, Devine, Robinson, Miller).
Frequently Asked Questions
How is ideal weight calculated?
Several formulas exist. The Hamwi formula (widely used in clinical settings): for men, 48 kg + 2.7 kg per inch over 5 feet; for women, 45.5 kg + 2.2 kg per inch over 5 feet. The Devine formula: men = 50 + 2.3 kg per inch over 5 feet; women = 45.5 + 2.3 kg per inch over 5 feet. Our calculator shows results from all major formulas so you can see the range.
Is there a single "ideal" weight?
No — ideal weight is a range, not a single number. Healthy body weight depends on muscle mass, bone density, age, and body composition, not just height. An athlete may weigh 20 lbs more than the "ideal" formula suggests but have very low body fat. Use ideal weight charts as a rough guideline alongside BMI, waist-to-height ratio, and body fat percentage for a complete picture.
How long does it take to reach an ideal weight?
Safe, sustainable weight loss is 0.5–1 kg (1–2 lbs) per week. A calorie deficit of 500–750 calories/day produces this rate without significant muscle loss. If you are 20 kg above your ideal weight, plan for 20–40 weeks of consistent effort. Rapid weight loss (>1 kg/week) often causes muscle loss, metabolic adaptation, and rebound weight gain. Slow and steady wins.