Free tools
Professional calculators for your practice
Estimate calories, macros, hydration, BMI, and protein with validated formulas. Built for nutritionists, dietitians, and trainers who want speed without sacrificing clinical judgment.
Calorie calculator (TDEE)
Estimate total daily energy expenditure with four validated formulas.
Macro calculator
Turn daily calories into protein, carbs, and fats based on the client goal.
BMI calculator
Compute body mass index and its clinical reference range.
Daily water intake calculator
Estimate recommended daily water in liters by weight, climate, and activity.
Protein calculator
Calculate grams of protein per kg of body weight by goal.