Ideal Weight Calculator
What is Ideal Weight Calculator
The ideal weight calculator estimates a target body weight from your height and sex using four classic formulas: Devine, Robinson, Miller and Hamwi. All four are anchored at 5 ft (152.4 cm) and add a fixed amount per inch above that height, differing mainly in the per-inch slope. The tool shows each formula and their average, along with a healthy weight range derived from a BMI of 18.5 to 24.9. These formulas are population estimates, not medical targets. They ignore muscle mass, body composition, age and frame size, so treat the result as a reference point rather than a goal.
How to use
- Pick your sex with the Male/Female toggle.
- Choose Metric (cm) or Imperial (ft+in) units.
- Enter your height.
- Read the average ideal weight, the four-formula breakdown and the healthy range.
When to use it
Want a quick reference number before setting a goal? Enter a height of 175 cm for a man and you get an average ideal weight of about 70 kg, with the four formulas landing between roughly 68.7 and 72 kg. The tool also shows a healthy weight range of about 56.7 to 76.3 kg for that height (BMI 18.5 to 24.9), so you can see where the single number sits inside a realistic band.
Frequently asked questions
Which ideal weight formula is most accurate?
No single formula is definitively most accurate, since they are all statistical estimates. Devine is the one most used in clinical practice, mainly for medication dosing. The formulas differ mostly in the per-inch increment, which is why this tool shows all four and their average instead of picking one.
What is the ideal weight for a 175 cm man?
For a 175 cm man the four formulas give roughly 68.7 to 72 kg, averaging about 70 kg. The BMI-based healthy range for that height is wider, about 56.7 to 76.3 kg, so the average sits comfortably inside it.
Is ideal weight the same as healthy weight?
No. Ideal weight is a single estimated figure from a formula, while the healthy weight range is the span of weights that give a BMI of 18.5 to 24.9 for your height. A weight can be healthy without matching the formula's ideal exactly, which is why the tool shows both.
Does ideal weight differ for men and women?
Yes. Each formula uses a lower base weight for women than for men at the same height, so switching the Male/Female toggle changes the result. The per-inch increment is the same, but the starting point differs.
Can I share this tool with my inputs pre-filled?
Yes. The URL updates automatically as you type. Copy it from the address bar or use the Share button, and anyone who opens the link will see your exact inputs ready to go.
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