βš–οΈ
πŸ‘Ά

Understanding BMI for Adults

Learn what your BMI number means, what category you fall into, and what the WHO guidelines say.

Ez da saioa hasi behar
BMI
22.9
Normal weight
1018.5253040

Healthy weight range for your height: 56.7 – 76.3 kg

BMI Categories (WHO)
UnderweightBelow 18.5
Normal weight18.5 – 24.9
Overweight25.0 – 29.9
Obese (Class I)30.0 – 34.9
Obese (Class II)35.0 – 39.9
Obese (Class III)40.0 and above

BMI is a screening tool, not a diagnostic measure. It does not account for muscle mass, bone density, or fat distribution. Consult a healthcare professional for personalised advice.

Education tips

πŸ‘Ά

Note: this calculator uses adult BMI categories. Children and teenagers require age- and sex-specific BMI percentile charts (BMI-for-age) β€” consult a paediatrician.

πŸ’‘

BMI = weight (kg) Γ· heightΒ² (mΒ²). A 70 kg person who is 1.75 m tall: 70 Γ· (1.75 Γ— 1.75) = 70 Γ· 3.0625 = 22.9 (Normal).

πŸ“Š

The WHO defines four categories: Underweight (<18.5), Normal (18.5–24.9), Overweight (25–29.9), Obese (30+). These are international standards.

🌍

Some health organisations use lower BMI thresholds for Asian populations, where health risks from excess weight appear at lower BMI values.

Nola Funtzionatzen Du

1
Sartu
Enter your data into the tool above. Everything stays local to your browser.
2
Prozesua
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Deskargatu
Get your result instantly. Nothing is stored after you leave the page β€” complete privacy.

Zergatik erabili gurea?

βœ“Erabat doakoa, ezkutuko kosturik, inoiz
βœ“Ez da konturik, posta elektronikorik edo saioa hasteko beharrik
βœ“Fitxategiak ez dira inoiz zure gailutik irteten
βœ“Ez dago fitxategien tamaina mugarik
βœ“Ez dago ur-markarik edozein irteeratan

Also check out…

Maiz egiten diren galderak