Ideal Weight Calculator

Ideal body weight (IBW) is an estimated healthy weight based on height and gender. It's used for medical dosing, nutrition planning, and health assessments. IBW is a reference point, not a rigid target—factors like muscle mass, bone density, and body composition aren't captured in these formulas.

Each formula was developed from different populations and time periods. Robinson (1983) and Miller (1983) tend to give lower estimates than Devine (1974) and Hamwi (1964). Differences of 5-15 lbs are common. Use the average or healthy BMI range (18.5-24.9) as a more reliable guide.

Not exactly. Ideal weight formulas don't account for muscle mass, body composition, or individual variation. A muscular athlete may exceed 'ideal weight' but be very healthy. A better approach: combine IBW with BMI range, body fat percentage, and how you feel. Consult a doctor for personalized guidance.

General guidelines for medium frame adults: 5'0": 100-127 lbs (45-58 kg). 5'6": 118-154 lbs (54-70 kg). 6'0": 140-183 lbs (64-83 kg). These ranges correspond to BMI 18.5-24.9. Add 10% for large frames, subtract 10% for small frames.

Body composition (fat vs muscle percentage) matters more than scale weight. Two people at 160 lbs can look completely different—one lean and muscular, another with excess body fat. Healthy body fat ranges: Men 10-20%, Women 18-28%. Focus on strength training, nutrition quality, and how your clothes fit.