Bento Box Calories Calculator

Formula

To calculate the total calories in a bento box:

\[ \text{TC} = (\text{RC} \times R) + (\text{PC} \times P) + (\text{VC} \times V) \]

Where:

\(\text{TC}\) is the total calories
\(\text{RC}\) is the calories per cup of rice (200 calories/cup)
\(R\) is the amount of rice in cups
\(\text{PC}\) is the calories per gram of protein (4 calories/gram)
\(P\) is the amount of protein in grams
\(\text{VC}\) is the calories per cup of vegetables (50 calories/cup)
\(V\) is the amount of vegetables in cups

What is a Bento Box?

A bento box is a single-portion take-out or home-packed meal common in Japanese cuisine. A traditional bento holds rice or noodles, fish or meat, with pickled and cooked vegetables, in a box. Bento boxes are also available in many places worldwide and can vary greatly in their contents and portion sizes.

Example Calculation 1

Let's assume the following values:

Amount of Rice (\(R\)) = 1 cup
Amount of Protein (\(P\)) = 100 grams
Amount of Vegetables (\(V\)) = 2 cups

Using the formula:

\[ \text{TC} = (200 \times 1) + (4 \times 100) + (50 \times 2) = 200 + 400 + 100 = 700 \text{ kcal} \]

The total calories are 700 kcal.

Example Calculation 2

Let's assume the following values:

Amount of Rice (\(R\)) = 0.5 cup
Amount of Protein (\(P\)) = 150 grams
Amount of Vegetables (\(V\)) = 1 cup

Using the formula:

\[ \text{TC} = (200 \times 0.5) + (4 \times 150) + (50 \times 1) = 100 + 600 + 50 = 750 \text{ kcal} \]

The total calories are 750 kcal.