Calculate your ideal body weight using four popular formulas
Note
These formulas are designed for adults taller than 5 feet (152 cm). Ideal weight varies based on body composition, bone density, and other factors. Use these as general guidelines only.
How it works
Estimates a reference body weight for a given height and sex using the Devine formula, the clinical standard originally developed for drug dosing rather than aesthetics.
Men: 50 kg + 2.3 kg per inch over 5 ft | Women: 45.5 kg + 2.3 kg per inch over 5 ft
Base50 kg (men) or 45.5 kg (women) at 5 ft2.3 kgadded per inch of height above 5 ft
- Inches over 60: 70.9 − 60 = 10.9
- 10.9 × 2.3 = 25.1
- 50 + 25.1 = 75.1
- Devine ignores body composition entirely. A muscular athlete will exceed it while being lean and healthy.
- Robinson, Miller, and Hamwi formulas give slightly different figures; treat any of them as a range, not a target.
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Frequently Asked Questions
No. Ideal Weight Calculator is free, with no signup required, and nothing you enter leaves your browser.
Ideal Weight Calculator is built on published formulas and reference ranges from established health sources. We revisit it periodically as guidance evolves; the "Last reviewed" date above shows when that last happened. If something looks wrong, tell us with the feedback button in the bottom-right corner.