BMI Calculator Home › About
About This Calculator
bmicalculatorwomen.au is a free tool built for Australian women who want a clear, private and judgement-free way to check their BMI and understand what it means.
How it works
The calculator uses the standard formula BMI = kg ÷ m². Adult categories follow the World Health Organization and are used by Australian health bodies: under 18.5 underweight, 18.5 to 24.9 healthy, 25 to 29.9 overweight, 30 and over obesity. The healthy weight range is calculated from BMI 18.5 to 24.9 at your height. All calculation happens on your device.
Limitations
BMI cannot tell fat from muscle, does not show where fat is stored and is not designed for pregnancy, under-18s or elite athletes. Use it as a conversation starter with your health professional.
Sources and further reading
- Australian Government Department of Health, Disability and Ageing: healthy weight and physical activity guidelines.
- Australian Institute of Health and Welfare (AIHW): overweight and obesity statistics.
- Australian Dietary Guidelines (NHMRC).
- World Health Organization: BMI classification.
This site is independent and is not affiliated with any government body.