Find your ideal body weight based on height and gender, using trusted medical formulas.
Calculate your ideal weight instantly.
There's no single correct ideal weight — different medical formulas, all developed decades ago for clinical dosing purposes, give slightly different estimates based on height and gender alone.
These formulas were originally created to help doctors calculate medication dosages, not as fitness targets. They don't account for muscle mass, frame size, or body composition, so treat the result as a general reference point rather than a strict goal.
Devine (men): 50 kg + 2.3 kg per inch over 5 feet
Robinson (men): 52 kg + 1.9 kg per inch over 5 feet
Miller (men): 56.2 kg + 1.41 kg per inch over 5 feet
Female versions use slightly lower base weights
This calculator averages across three widely-cited formulas to give you a reasonable range rather than relying on just one.
Use this as a general reference alongside BMI and body composition — not as a strict target to hit exactly.
None is universally "most accurate" — they were designed for different clinical purposes. Averaging them, as this calculator does, gives a more balanced estimate.
Not necessarily. These formulas don't account for muscle mass or frame size, so use the result as a general guide rather than a strict target.
No, these formulas are designed for adults only. Children need growth-chart-based assessments from a pediatrician.