Ideal Weight Calculator

What's the right weight for your height? This calculator uses multiple established formulas (Devine, Robinson, Miller, and BMI-based) to give you a healthy weight range — not just a single target number.

How to Use This Calculator

1. Enter your height (in feet/inches or cm).
2. Select your gender.
3. Optionally select your frame size (small, medium, large) if you know it.
4. Click Calculate to see ideal weight estimates from multiple formulas and the healthy BMI weight range.

Ideal Weight Formulas

All formulas below are for height in inches above 60 (5 feet), with the result in pounds:

Devine (1974): Men = 110 + 5(H−60) | Women = 100 + 5(H−60)

Robinson (1983): Men = 114.4 + 4.86(H−60) | Women = 108.0 + 3.70(H−60)

Miller (1983): Men = 124.1 + 2.89(H−60) | Women = 117.0 + 2.60(H−60)

Healthy BMI range: Weight = BMI × height² — using BMI 18.5–24.9

Example: 5'8" (68 inches) Female

• Devine: 100 + 5(8) = 140 lbs
• Robinson: 108 + 3.70(8) = 137.6 lbs
• Miller: 117 + 2.60(8) = 137.8 lbs
• Healthy BMI range (18.5–24.9): 122–164 lbs

Body Frame Size

Frame size affects ideal weight. Measure your wrist circumference and divide by height:

• Women: Small frame: r < 10 | Medium: 10–11 | Large: > 11
• Men: Small: r < 9.5 | Medium: 9.5–10 | Large: > 10

Large-framed individuals tend toward the upper end of the ideal weight range; small-framed toward the lower end.

Common Mistakes to Avoid

• Treating one formula result as an exact target — Formulas give estimates. The healthy BMI range is a better guide for most people.
• Ignoring body composition — A muscular person at 200 lbs may be at ideal health; someone at 160 lbs with 35% body fat may not be. Weight alone doesn't tell the full story.
• Setting weight goals based on appearance ideals rather than health — Fashion-ideal weight is often below healthy medical weight. Focus on health metrics, not unrealistic aesthetic standards.

Frequently Asked Questions

Which ideal weight formula is most accurate?

No single formula is universally most accurate — they were developed for different populations and purposes. The Devine formula was originally for medication dosing. The healthy BMI range (18.5–24.9) is most widely used clinically.

Is there one perfect ideal weight?

No. A range of weights is associated with good health. Individual factors — muscle mass, bone density, age, ethnicity — all affect what a healthy weight looks and feels like for a specific person.

How do I reach my ideal weight?

Through a sustainable calorie deficit (for weight loss) combined with regular exercise. Use our Calorie Calculator to find your daily intake target and our Calories Burned Calculator to account for exercise.

Conclusion

Ideal weight is a useful guideline, not a rigid prescription. Use this calculator as a reference point, combine it with other health metrics (BMI, body fat %), and work toward a healthy range rather than a single number.

Related: BMI Calculator | Body Fat Calculator | Healthy Weight Calculator | Calorie Calculator