A 2 in piece of chocolate cake with frosting provides 1790 kJ of energy What is this in dietary Calories Cal?

To convert kilojoules (kJ) to dietary Calories (Cal), you can use the conversion factor where 1 Cal is approximately equal to 4.184 kJ. Therefore, to convert 1790 kJ to Calories, you divide by 4.184:

1790 kJ ÷ 4.184 kJ/Cal ≈ 427.5 Cal.

So, a 2-inch piece of chocolate cake with frosting provides about 428 dietary Calories.