FitFormulas

Ideal Weight Calculator

A heuristic healthy weight range.

Private by design — everything is calculated on your device, nothing is stored
cm

Try: Sex=male, Height=175, Frame=medium → male, 175 cm, medium, 64.8 – 79.2 kg

How to use

The Hamwi method gives a baseline weight by height and frame size. It is a rough guideline from mid-20th-century actuarial data, not a target for everyone.

Formula

Male: 48 kg + 2.7 kg per inch over 5 ft; female: 45.4 + 2.2. Frame adjusts ±10%.

FAQ

Is Hamwi still used?

It is a simple reference; modern advice focuses on health markers, not a single number.

Why frame size?

Larger bones weigh more, so "ideal" shifts with build.

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