This calculator gives you a BMI figure. It does not tell you whether a medication is appropriate for you, and it is not a diagnosis.
What BMI is actually used for here
Insurers use BMI thresholds as an entry criterion for coverage of weight management medication, typically 30 and above, or 27 and above alongside a weight-related condition. Which figure your plan assesses, and whether it uses your current or your highest recorded BMI, matters more than most people expect. That is covered in BMI requirements for GLP-1 insurance approval and whether you need a comorbidity.
What BMI does not tell you
It does not distinguish muscle from fat, so it misreads people who carry significant muscle. It performs differently across ethnic groups, and several clinical bodies recommend lower thresholds for people of South Asian and East Asian ancestry, because metabolic risk appears at a lower BMI. And it says nothing about where fat is carried, which matters clinically.
A number from this calculator is a starting point for a conversation, not a verdict on your health.
If this number is upsetting
Weight figures are difficult for many people, and BMI in particular gets treated as a judgement when it is a rough screening measure. If seeing this number is prompting thoughts about eating as little as possible, that is worth taking seriously rather than ignoring. GLP-1s and disordered eating covers the warning signs, and the National Alliance for Eating Disorders helpline offers support.
This tool is general information, not medical advice. See our medical disclaimer.