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RDI Calories Calculator

Formula

The formula to calculate the RDI of calories is:

$\text{RDI} = \text{BMR} \times \text{Activity Factor}$

Where:

$\text{BMR}$ is the Basal Metabolic Rate calculated based on the Mifflin-St Jeor Equation.
$\text{Activity Factor}$ is the multiplier based on the level of daily activity.

What is RDI of Calories?

The Recommended Daily Intake (RDI) of calories is the amount of energy intake that is considered sufficient to maintain body weight in a healthy individual based on their age, weight, height, gender, and level of physical activity. It is used as a guideline for planning diets and ensuring adequate energy intake.

Example Calculation

Consider an example where:

Age: 30 years
Gender: Male
Weight: 70 kg
Height: 175 cm
Activity Level: Moderately active (1.55)

Using the formula to calculate the RDI of calories:

$\text{BMR} = 10 \times 70 + 6.25 \times 175 - 5 \times 30 + 5 = 1663.75 \text{ kcal/day}$

$\text{RDI} = 1663.75 \times 1.55 = 2578.81 \text{ kcal/day}$

This means that the RDI of calories for this example is approximately 2578.81 kcal/day.