AMDR Calculator

Calculate Macronutrient Intake (AMDR)

Formula

The formulas to calculate the acceptable macronutrient distribution ranges (AMDR) are:

Carbohydrates (C):

\[ C = 45\%-65\% \times \frac{Dkcal}{4} \]

Protein (P):

\[ P = 10\%-35\% \times \frac{Dkcal}{4} \]

Fat (F):

\[ F = 20\%-35\% \times \frac{Dkcal}{9} \]

Where:

AMDR Definition

AMDR, short for Acceptable Daily Macronutrient Range, is a term used in science to describe the healthy amounts of carbs, proteins, and fats a person should eat each day. These ranges are based on a percentage of calories. Carbs and protein both provide 4 calories per gram and fat provides 9 calories per gram.

Example Calculation

Let's assume the following values:

Using the formulas to calculate the Macronutrient Intake:

Carbohydrates (C):
\[ C = 45\% \times \frac{2000}{4} = 225 \text{ grams} \quad to \quad C = 65\% \times \frac{2000}{4} = 325 \text{ grams} \]
Protein (P):
\[ P = 10\% \times \frac{2000}{4} = 50 \text{ grams} \quad to \quad P = 35\% \times \frac{2000}{4} = 175 \text{ grams} \]
Fat (F):
\[ F = 20\% \times \frac{2000}{9} = 44.44 \text{ grams} \quad to \quad F = 35\% \times \frac{2000}{9} = 77.78 \text{ grams} \]

Therefore, for a person burning 2000 calories a day: