BMI
Body Mass Index, the friendly way.
Where you sit on the WHO scale, plus the weight range that's healthy for your height.
Your numbers
Fill in your weight and height. We'll do the math.
What BMI actually measures
BMI is your weight divided by the square of your height. It's a rough proxy for body fatness — useful at the population level, blunt at the individual one.
A 22 BMI can sit on a powerlifter at 12% body fat or on a sedentary office worker at 30%. Use it as a starting question, not a verdict.
Wulfy pairs BMI with waist circumference, weight trend over weeks, and how clothes actually fit — a fuller picture than one number can give.
Source: World Health Organization, BMI classification.
Wulfy tracks BMI for you.
Weekly check-ins, gentle trend graphs, no judgment when life happens.