UnityLife

Healthy Weight Range

What weight range corresponds to BMI 18.5–24.9?

Enter your height. We show the body-weight band the WHO uses as a public-health reference. A reference window — not a personal target.

Free tool

WHO BMI 18.5 – 24.9 reference range

53.5 – 72.0kg

Maths: BMI 18.5 × (1.70 m)² to BMI 24.9 × (1.70 m)². This is a reference window from public-health charts, not a personal weight target.

BMI ranges are population-level statistics. They were not designed for individual weight targeting and have well-known limits (athletes, older adults, ethnicity, fluid balance). UnityLife shows you the maths and the reference window — your clinician decides if the number actually matters for you.

How to read this

The numbers shown are the body-weight values that fall inside BMI 18.5 – 24.9 for your height. The WHO uses that band in population-level health surveys; Health Canada uses it the same way in national statistics. It is a reference range for a public-health system, not a personal weight prescription.

Why we don’t label your weight

UnityLife is a lifestyle publication, not a medical one. We deliberately don’t tell you whether your weight is “healthy” or “unhealthy” — that judgement requires context (body composition, activity, medical history, age, pregnancy status) that no calculator can know.

When BMI doesn’t apply

BMI was never validated for children and teens, pregnant or breastfeeding people, competitive athletes with high lean mass, frail older adults, or several ethnic populations whose body-fat-to-BMI relationship differs from the cohort the WHO range was derived from. If any of those apply to you, the reference range is essentially meaningless and your clinician’s assessment should outweigh it.

This tool is for educational purposes only and does not provide medical advice, diagnosis, or treatment. Always consult a licensed Canadian healthcare professional. Read our full disclaimer.