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Ideal Weight Calculator

Calculate your ideal weight using multiple proven formulas. Get personalized recommendations based on your height and gender.

Ideal Weight Results

Formula Ideal Weight (kg) Ideal Weight (lbs)

Healthy Weight Range (BMI 18.5-24.9)

Range (kg) -
Range (lbs) -

How to Use the Ideal Weight Calculator

  1. Select your gender (male or female).
  2. Enter your height in centimeters.
  3. Click "Calculate Ideal Weight" to see results.
  4. Compare different formulas and the healthy BMI range.

Why "Ideal Weight" Formulas Are Rougher Estimates Than People Assume

Ideal weight calculators typically use decades-old formulas (Devine, Robinson, Hamwi, and others) originally developed for medical purposes like drug dosing calculations, not as fitness or aesthetic targets - these formulas primarily factor in height and sex, and were never designed to account for individual variation in muscle mass, bone density, or body frame size, which is exactly why two people of the same height and sex can have very different healthy weights depending on their build.

Different formulas can produce noticeably different results for the same person, since each was developed from different population data and assumptions - this is why ideal weight calculators typically show a range rather than a single precise number, acknowledging the inherent uncertainty in any formula-based estimate.

Why This Number Shouldn't Be Treated as a Strict Target

These formulas don't account for muscle mass, meaning a muscular athlete can register well above their formula-calculated "ideal weight" while being entirely healthy - the number is a general statistical reference point rather than a personalized medical recommendation, and actual healthy weight should ideally be discussed with a healthcare provider who can consider individual factors these formulas can't.

Frequently Asked Questions

What is ideal weight?

Ideal weight is an estimate of what a healthy weight should be for a given height and gender. Different formulas use different approaches, so results vary. It's a guideline, not a strict target.

Which formula is most accurate?

No single formula is universally best. The Devine formula is widely used in medicine. The BMI range is the most general guideline. Consider the average of multiple formulas for a balanced view.

Why do men and women have different ideal weights?

Men and women have different body compositions. Men typically have more muscle mass and bone density, while women naturally have higher body fat percentages. These differences are accounted for in the formulas.

Is BMI a good measure of ideal weight?

BMI is a general screening tool but doesn't account for muscle mass, bone density, or body composition. Athletes may have high BMI due to muscle but still be healthy. Use BMI as one of several indicators.

Should I aim for the exact ideal weight?

No, ideal weight is a range, not a specific target. Focus on overall health, body composition, and how you feel rather than hitting a specific number. Consult a healthcare provider for personalized advice.

Why do different formulas give different results?

Each ideal weight formula was developed from different population data and assumptions, so results can vary - this is why calculators often show a range rather than one precise number.

Does this account for muscle mass?

No, most ideal weight formulas were designed decades ago primarily for medical dosing purposes and don't account for muscle mass or body frame size.

Should I use this as a strict target?

No, treat it as a general reference point - actual healthy weight depends on individual factors best discussed with a healthcare provider.