Macronutrient split
Enter a calorie intake already set with a professional or estimated elsewhere, and the share of carbs and protein. Fat takes the remaining share.
General information, not medical advice. This result does not replace a doctor. If in doubt or if you have symptoms, see a health professional.
Result
250Carbs (g per day)
- Protein (g per day)
- 100
- Fat (g per day)
- 67
- Fat share
- 30%
Inputs
- Energy intake
- 2000
- Carbs share
- 50
- Protein share
- 20
How it is calculated
Carb grams = calories × share ÷ 100 ÷ 4.
Result
Carbs (g per day)
- Protein (g per day)
- 100
- Fat (g per day)
- 67
- Fat share
- 30%
How it is calculated
- Carb grams = calories × share ÷ 100 ÷ 4.
- Protein grams = calories × share ÷ 100 ÷ 4.
- Fat: share = 100 − carbs − protein; grams = calories × share ÷ 100 ÷ 9.
Example
2,000 kcal, 50% carbs, 20% protein: 250 g carbs, 100 g protein, 67 g fat (30%).
Good to know
- Plain arithmetic, not a meal plan. Needs vary with age, health and sport.
- With an illness (diabetes, kidney…), during pregnancy or for a child, see a doctor or dietitian.
Sources
- Atwater factors: 4, 4 and 9 kcal per gram
- IOM, Dietary Reference Intakes (AMDR), 2005
Frequently asked questions
What is this tool used for?
Enter a calorie intake already set with a professional or estimated elsewhere, and the share of carbs and protein. Fat takes the remaining share.
How is the result calculated?
Carb grams = calories × share ÷ 100 ÷ 4.
What should I check before using the result?
Plain arithmetic, not a meal plan. Needs vary with age, health and sport.