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Ideal Body Weight Calculator

Ideal body weight calculator — Devine, Robinson, Miller and Hamwi formulas, computed side by side.

Ideal Body Weight

Devine · Robinson · Miller · Hamwi

Ideal weight (kg)
Devine70.464567 kg
Robinson68.905512 kg
Miller68.745669 kg
Hamwi72.023622 kg
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About this tool

Show ideal body weight estimates from four classic formulas: Devine (1974), Robinson (1983), Miller (1983), and Hamwi (1964).

Formula

All use the form W = base + slope · (height − 60 in).   Devine men: 50 + 2.3·(h−60). Devine women: 45.5 + 2.3·(h−60).

Worked example

Male, 175 cm (~68.9 in) → Devine: 50 + 2.3·8.9 ≈ 70.5 kg. Robinson: ≈ 68.9 kg. Miller: ≈ 68.7 kg. Hamwi: ≈ 72.0 kg.

Notes

These were originally derived for medication dosing in adults, not as fitness targets. They diverge above ~190 cm and below ~150 cm.