Free Ideal Weight Calculator Online

This free online ideal weight calculator applies four well-established formulas — Devine, Robinson, Miller, and Hamwi — to estimate your healthy body weight. Each formula uses your height and gender as primary inputs, producing slightly different results based on the clinical data behind them.

For a male at 178 cm (5'10"), the Devine formula gives approximately 73 kg (161 lbs), while the Miller formula suggests around 66 kg (145 lbs). The range between these formulas represents a realistic healthy weight window for that height.

Your ideal weight is a guideline, not an absolute target. Body composition, muscle mass, and individual health factors all influence what weight is genuinely healthy for you. Use this free tool as a starting reference point.

The Devine formula (1974) is the most widely used in clinical settings and provides a moderate estimate. The Robinson formula (1983) was developed as a refinement and tends to be slightly lower for taller individuals.

The Miller formula (1983) gives the most conservative results — often 3-5 kg below Devine. The Hamwi formula (1964) is the oldest and often produces the highest estimates, particularly for taller people.

When using the ideal weight calculator, look at the average across all four formulas for the most balanced estimate of your target body weight.