NutriFit calculators

• Daily calorie needs calculator (TDEE)

  Calculates basal metabolic rate and total daily energy expenditure, plus calorie targets for losing, maintaining and gaining weight.

  • Basal metabolic rate and total daily energy expenditure
  • Calorie targets for loss, maintenance and gain
  • Five activity levels with explicit factors
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• Macronutrient calculator

  Splits a daily calorie target into protein, fat and carbohydrates based on body weight and goal — in grams, calories and percentages.

  • Protein, fat and carbohydrates in grams, calories and percentages
  • Ranges for protein and fat rather than a single number
  • Three goals: loss, maintenance and gain
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• Water intake calculator

  Calculates daily fluid needs from body weight with adjustments for physical activity and hot climate.

  • Fluid needs from body weight and age
  • Adjustments for training and hot climate
  • Drink-only volume and an equivalent in glasses
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• Body composition calculator

  Estimates body fat percentage from circumferences, calculates fat and lean mass and body mass index.

  • Body fat from circumferences, no equipment needed
  • Fat mass and lean mass in kilograms
  • BMI with the WHO category
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• Glycemic load calculator

  Calculates the glycemic load of a serving from its glycemic index and carbohydrate content — a measure that reflects the real glucose response better than the index alone.

  • Glycemic load of any serving size
  • Reference glycemic index values for common foods
  • Index and load categories with explicit thresholds
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• Nutrient deficiency risk screening

  Mark the lifestyle and diet factors that apply to you and see which nutrient deficiencies are likely and which laboratory tests confirm them.

  • Twelve risk factors from NIH ODS and EFSA guidance
  • Risk scores across nine nutrients
  • A laboratory marker to verify each nutrient
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This calculation is for reference only and is not medical advice, a diagnosis or a prescription. If you have a medical condition, are pregnant, take medication or have any doubts, discuss the result with a physician or a qualified nutrition professional.