Health tools

All 5 health tools. Every result comes with the formula used and a reference table, and everything runs in your browser. ← All categories

Health

Check your Body Mass Index instantly with WHO classification, ideal weight range, and BMI Prime.

Basal metabolic rate with the Mifflin-St Jeor equation, plus daily calorie needs by activity level.

Maintenance calories (TDEE) and a daily target for a chosen deficit, with expected weekly loss.

Devine, Robinson, Miller and Hamwi ideal-weight formulas side by side, plus the healthy BMI range.

A rule-of-thumb daily water estimate from body weight, exercise and climate — with the caveats.