Health & Nutrition

Educational health and fitness estimators for body measurements, calories, protein and daily hydration.

6 tools

Estimate maintenance calories from basal metabolic rate and a selected daily activity multiplier.

Calculate a height-based reference weight with the Devine formula for a simple educational comparison.

Estimate daily water needs from body weight and exercise duration with a simple hydration guideline.

Estimate basal metabolic rate with the Mifflin–St Jeor equation using sex, age, weight and height.

Estimate body fat percentage from BMI, age and sex using a published population-level approximation.

Estimate a daily protein range from body weight and general activity or training level.