Healthy Weight Calculator

Find your healthy weight range based on the WHO normal BMI range (18.5-25) for your height.

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  • Works on all devices
Enter your height to find your healthy weight range based on the WHO normal BMI range (18.5-25).
cm

Your result

53.5 kg

Healthy weight range (low)

Healthy weight range (high)72.3 kg

AI explanation

Formula

min weight = 18.5 × height(m)². max weight = 25 × height(m)²

Worked example

170cm

Worked example: 170cm
FieldValue
Height170
Healthy weight range (low)53.5
Healthy weight range (high)72.3

Assumptions

  • Uses the WHO normal BMI range of 18.5-25, the same cutoffs used by the BMI Calculator.
  • Does not account for muscle mass, frame size, or age — a muscular individual may healthily exceed this range.
  • Informational only — not a diagnosis.

Frequently asked questions

How is the healthy weight range calculated?

It inverts the BMI formula at the WHO normal-range cutoffs (18.5 and 25): weight = BMI × height(m)², giving a minimum and maximum weight for your height.

Why is my healthy weight range so wide?

The WHO normal BMI band spans 18.5 to 25 — a wide range by design, since BMI alone doesn't capture body composition, and a healthy weight varies with muscle mass and frame size.

Should athletes use this range?

Not necessarily — muscular individuals often have a healthy weight above this BMI-based range because muscle is denser than fat. Body fat percentage is a better indicator for athletes — see the Body Fat Calculator.

Related calculators

BMI CalculatorIdeal Weight Calculator

Related articles

Health & Fitness1 min read

How Your Healthy Weight Range Is Calculated

A healthy weight range comes from inverting the BMI formula at the WHO's normal-BMI cutoffs (18.5 and 25), giving a low and high weight for any given height rather than a single target number.

Read guide
Health & Fitness1 min read

Why Ideal Weight Formulas and Healthy Weight Ranges Don't Match

A single "ideal weight" figure and a "healthy weight range" answer fundamentally different questions — one gives a decades-old clinical point estimate, the other a wide BMI-based band — and the point estimate doesn't sit at the exact center of the range.

Read guide

Sources

  • Body mass index — World Health Organization. Effective 01-01-1995, reviewed 13-09-2026.

This calculator provides a general estimate only and does not constitute personalized medical advice. Consult a qualified healthcare professional for guidance on a healthy weight for you.

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