Trim & Thriving Free calculator
Free, and honest about the limits

A chart drew one line for every body.

BMI came out of nineteenth century population statistics. It is useful across thousands of people and crude for any single one, because it cannot tell muscle from fat. Here is yours, with the part the chart leaves out.

24.9
Where the chart stops calling you normal

One line, drawn across every adult body: every height, every build, every amount of muscle. It was never calculated for a person.

Chart line
24.9
You
0
0Category
0Healthy range
0To 24.9

The arithmetic runs in your browser. Nothing is sent anywhere.

Method
Weight in kilograms divided by height in metres squared, the standard formula used everywhere BMI is quoted.
Limits
BMI cannot tell muscle from fat and says nothing about where fat sits. Waist to height ratio does better on both counts, and is the next calculator along.

Also on Trim & Thriving

Weight Why the scale hides what is actually changing Hormones How cortisol turns stress into belly fat Hormones Menopause weight gain is not your fault