Nutrition Support
Nutrition support calculations account for what a patient is actually receiving, whether by mouth, tube, or vein. These cover total and macronutrient calories from carbohydrate, protein, and fat; a parenteral nutrition worksheet that works from the final dextrose and amino acid percentages and the lipid volume; the conversion between grams of protein and grams of nitrogen, with the non-protein calorie to nitrogen ratio; and total energy expenditure from a basal figure with activity and stress factors applied.
Enteral / dietary calories
Calculate total calories and macronutrient distribution from grams of carbohydrate, protein, and fat.
Parenteral nutrition calorie worksheet
Calculate total and per-component calories in a parenteral nutrition bag from the final dextrose and amino acid percentages and the lipid volume.
Nitrogen from protein
Convert between grams of protein and grams of nitrogen, and calculate the non-protein calorie to nitrogen ratio.
Total energy expenditure (TEE)
Calculate total energy expenditure from a basal energy expenditure multiplied by activity and stress factors.
Where to go next
- Guides — longer explanations of how to work through a calculation and how to choose between related calculators.
- Practice problems — one worked problem for every calculator, solutions hidden until you open them.
- Reference tables and formula sheet — every constant and conversion factor used here, with citations.
- All 58 calculators — the full index, filterable by category.
Other categories
Also known as
calories · kcal · macronutrient · enteral · tube feed · atwater · carbohydrate protein fat · TPN · PN · parenteral nutrition · dextrose · amino acid · lipid · ILE · nitrogen · protein · nitrogen balance · UUN · NPC:N · 6.25 · TEE · energy expenditure · BEE · BMR · stress factor · activity factor · harris benedict · mifflin