Transparent by design — computed in your browser from a published formula, not a black box. Verified 2026-05-25. Based on: Pai & Paloucek, origin of IBW equations (2000) ↗ · Devine (1974) ↗ Full methodology →

Education · Not medical advice. Output is deterministic math from your inputs.Editorial standards Sponsor disclosure Corrections

BODY COMPOSITION

Ideal Weight Calculator

Compare Devine, Robinson, Miller, and Hamwi formulas as a realistic range.

Result

IDEAL WEIGHT

70 kg

RANGE

68.7 – 72.0 kg

DEVINE

70.5 kg

ROBINSON

68.9 kg

MILLER

68.7 kg

Reference Weight Zone

The chart centers the formula midpoint inside the legacy reference band.

Reference weight

Male reference formulas

70 kg

5590.03

Full methodology →

How to use it

Enter height and sex. The output shows a range from multiple formula references (Hamwi, Devine, Robinson, Miller) — this range, not a single number, is the intended output.
These formulas were developed for medication dosing and anesthesia — they assume average body composition and consistently underestimate appropriate weight for people with above-average muscle mass.
A person who resistance trains regularly will function optimally 10–20 lbs above what these formulas suggest. Frame the output as an orientation, not a personal target.
If your weight significantly exceeds the range and you want to reduce, use the Body Fat Percentage Calculator and Calorie Deficit Calculator for actionable, composition-based targets instead.
The most clinically useful individual target for most people is a BMI of 21–24 adjusted for build and body composition — more meaningful than any formula output.

Questions people usually ask

Which formula is used here?

Shows Devine, Robinson, Miller, and Hamwi formula estimates as a range rather than a single rigid target.

Can I use metric or imperial units?

Yes. This tool supports both metric and imperial units and remembers your preference.

Is this medical advice?

No. This tool provides general fitness estimates and should not replace medical guidance.

Is this tool free and private to use?

Yes. AI Fit Hub tools are free, no-signup browser tools. Inputs stay in your browser unless you choose to share a URL.

Do these tools replace medical guidance?

No. These outputs are general fitness estimates — not medical advice.

Can I switch between metric and imperial units?

Yes. Every tool supports both systems and remembers your preference in localStorage.

Formula

See the math

The underlying formula with variables defined, derivation shown, and a worked example with units.

Ideal Weight Formula (Devine 1974) →

Related Resources

Learn the decision before you act

Every link here is tied directly to Ideal Weight Calculator. Use the explanation, formula, examples, and benchmarks to pressure-test the calculator output from first principles.

Browse all 7 resources

Guides Checklists Formulas Examples How To Use

How To Use

5 STEPS

How to Use BMI Calculator

Learn to accurately use the BMI Calculator to assess your weight status. Understand inputs, interpret results, and get practical health insights.

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Guide

6 MIN READ

How to Calculate Your Ideal Weight

How to calculate your ideal weight using BMI, the Devine formula, body fat percentage, and waist-to-height ratio, plus why a healthy range beats one number.

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Formula

2 VARIABLES

Ideal Weight Formula (Devine 1974)

Ideal weight formula from the Devine 1974 equation: men 50 + 2.3 kg per inch over 60, women 45.5 + 2.3, plus Robinson, Miller and Hamwi variants.

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Examples

4 EXAMPLES

Ideal Weight Examples

Discover diverse ideal weight examples for athletes, sedentary individuals, and more. Learn how factors like body composition, age, and lifestyle redefine.

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Checklist

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Plan sustainable weight loss with this practical checklist from AI Fit Hub. Set realistic goals, optimize nutrition, and structure activity for lasting results.

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How To Use

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