Health & Fitness Calculators
Anorexic BMI Calculator
Check BMI against the anorexic threshold.
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Result
BMI
18.3
Anorexic BMI range
No
A BMI under 17.5 is a common clinical marker for anorexia. This is not a diagnosis — please consult a healthcare professional.
About the Anorexic BMI Calculator
This calculator works out your body mass index and flags whether it sits below 17.5 — a figure often used clinically alongside other criteria for anorexia. It is an informational screen only, not a diagnosis. If you have concerns about your weight or eating, please speak with a doctor.
How to use the Anorexic BMI Calculator
- 1Enter your your weight and height.
- 2Read the result instantly — it recalculates as you type.
- 3Adjust the numbers to model different scenarios.
Frequently asked questions
What BMI is considered anorexic?
A BMI below 17.5 is a commonly cited marker, but anorexia is diagnosed by a professional using many criteria — not BMI alone.
Is this a diagnosis?
No. It is an informational calculation. If you're worried about your weight or eating patterns, please talk to a healthcare provider.