BMI — ARC (Answer • Reason • Check)

What this is? A self‑contained, browser‑only ARC harness for body mass index (BMI). Enter height and weight (metric or US units), then press Run. The page prints a step‑by‑step Trace and an ARC report (Answer • Reason • Check), including category and a healthy‑range weight band for the given height.

For reproducibility and documentation only; not medical advice.