ToolAtlasBMI is weight divided by height squared. This tab shows the number and a standard adult category. It is a screening statistic, not a diagnosis, and it misleads for many athletes, older adults, and pregnancy.
You typed BMI calculator. The math is the same everywhere. CDC, NHS, and hospital pages own trust. This tab only does the adult formula and shows a category table.
It is not body fat calculator (Navy-style estimate). It is not a diet plan.
Formula
- Metric:
BMI = kg / m² - Imperial:
BMI = 703 × lb / in²
Adult categories commonly cited by CDC: below 18.5, 18.5–24.9, 25.0–29.9, 30.0+ (obesity classes 1–3). We do not invent Asian cutoffs; guidelines differ — ask a clinician.
When the number lies
Pregnancy, high muscle mass, older adults who have lost muscle, edema. Children must not use adult bands.
Honest limits
- Not a diagnosis.
- Not “how much should I weigh.”
- Not a child percentile engine.
For energy estimates see calorie / TDEE calculator — also not advice.