Ideal Weight Calculator
Estimate your ideal body weight using four well-known formulas. Enter your height and gender to see a range of results.
cm
Ideal Weight Estimates (kg)
⚠ Non-medical information. These formulas are historical estimation methods and do not account for individual body composition, bone structure, age, or fitness level. They are not a substitute for professional health advice. Consult a qualified healthcare provider for personalised guidance.
How to Use
- Choose your height unit — centimetres (cm) or feet and inches (ft/in).
- Enter your height in the selected unit.
- Select your gender from the dropdown.
- Click "Calculate Ideal Weight" to see results from all four formulas.
When People Use This
- Setting a rough target weight during a fitness or weight-management journey.
- Comparing different formula-based estimates to understand the range of "ideal" weights.
- Pre-exercise or pre-wellness-check reference for body weight goals.
- Educational curiosity about how different formulas produce different results.
Examples
Example 1 — Male, 175 cm
Devine: 65.5 kg · Robinson: 64.7 kg · Miller: 63.3 kg · Hamwi: 65.1 kg · Range roughly 63–66 kg.
Example 2 — Female, 165 cm
Devine: 52.1 kg · Robinson: 52.4 kg · Miller: 51.2 kg · Hamwi: 52.1 kg · Range roughly 51–53 kg.
Example 3 — Male, 5 ft 10 in (70 in)
Devine: 72.7 kg · Robinson: 70.3 kg · Miller: 68.0 kg · Hamwi: 72.6 kg · Range roughly 68–73 kg.
Example 4 — Female, 5 ft 4 in (64 in)
Devine: 54.7 kg · Robinson: 53.9 kg · Miller: 51.5 kg · Hamwi: 54.5 kg · Range roughly 52–55 kg.
FAQ
- What is "ideal weight"?
- Ideal weight is a rough estimate of a healthy weight for a given height, based on population averages and specific formulas. It is not a precise or universally correct number.
- Why do the four formulas give different results?
- Each formula was developed from different study populations and assumptions. They are all approximations, and the differences between them highlight that no single formula is definitive.
- Which formula should I trust?
- None of them is perfect on its own. Use the range they produce as a broad reference, not a target to hit exactly.
- Does ideal weight account for muscle mass?
- No. These formulas are based on height and gender only. They do not consider muscle, bone density, age, or body composition.
- Is this the same as BMI?
- No. BMI uses both height and weight to produce a single index value. Ideal weight calculators estimate a target weight from height alone using specific formulas.