Free Tool
Ideal Weight Calculator.
Find your ideal weight range using four clinically validated formulas. Each formula was developed by a different researcher and gives a slightly different estimate.
cm
Ideal Weight Estimates
Average across all formulas:
Results update automatically as you type. These are estimates — not prescriptions.
The four formulas explained.
Robinson Formula (1983)
♂ Robinson = 52 + 1.9 × (height in inches − 60)
♀ Robinson = 49 + 1.7 × (height in inches − 60)
Developed from data on large populations. Generally considered more conservative.
Miller Formula (1983)
♂ Miller = 56.2 + 1.41 × (height in inches − 60)
♀ Miller = 53.1 + 1.36 × (height in inches − 60)
Developed alongside Robinson in the same year. Tends to produce slightly higher estimates.
Devine Formula (1974)
♂ Devine = 50 + 2.3 × (height in inches − 60)
♀ Devine = 45.5 + 2.3 × (height in inches − 60)
Originally created by Dr B.J. Devine for drug dosage calculations in clinical settings.
BMI-based (midpoint of healthy range)
♂ Healthy midpoint = 21.5 × height(m)²
♀ Healthy midpoint = 21.5 × height(m)²
Uses the midpoint of the WHO healthy BMI range (18.5–24.9 → midpoint 21.7). Directly tied to BMI classification.