Observed arrival · 2026-09-17
The Stat Method Shows Its Health Math
A set of health, fitness, and nutrition calculators that exposes its equations, assumptions, sources, and estimated error ranges.
Field notes
The toolkit runs several competing models rather than hiding disagreement behind one result: its TDEE and BMR calculator places five formulas side by side, while the body-fat tool combines Navy tape, Deurenberg, and skinfold approaches with published error ranges. Other instruments cover more than 30 MET-based activities and five one-rep-max equations. The site states that calculations run locally in the browser and that its mathematics is available on GitHub with unit tests.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue