---
title: "BMI Calculator Australia — Free 2025 | World Calculators"
description: "Free BMI calculator for Australia. 29% of Australian adults are obese (AIHW 2022). Uses WHO BMI standard. Check your Body Mass Index, normal weight range, and how Australia compares globally."
url: "https://worldcalculators.org/au/bmi-calculator/"
canonical: "https://worldcalculators.org/au/bmi-calculator/"
---

# BMI Calculator — Australia

Free BMI calculator for Australia. 29% of Australian adults are obese (AIHW 2022). Uses WHO BMI standard. Check your Body Mass Index, normal weight range, and how Australia compares globally.

## Quick answer

WHO normal BMI: 18.5–24.9. In Australia, 29.0% of adults are obese and 64.5% are overweight or obese — the 9th highest obesity rate in the world (WHO 2022). The Australian Institute of Health and Welfare uses WHO thresholds: overweight ≥25, obese ≥30. Two-thirds of Australian adults are overweight or obese. Aboriginal and Torres Strait Islander Australians have obesity rates roughly double the national average.

Source: https://worldcalculators.org/au/bmi-calculator/
Markdown mirror of the HTML page. Prefer this URL for RAG; the interactive calculator still lives on the HTML page.