The Horse 2019/20

Technology & Environment

From Joule to kWh

I decided to calculate the energy of cottage cheese. It’s a small meal I really like to eat for lunch at school.

100g of cottage cheese has 88kcal.

Calculation:

1 kcal = 0.001163 kWh

88 x 0.001163 = 0.102344 kWh

 

To calculate the result I used the numbers from this homepage.

 

Maria Bai, M17a

Units of energy and calculation

I wanted to know, how I can convert kcal (kilocalories) or even kJ (kilojoules) to kWh (kilowatt-hours). 

To calculate this, I created an Excel-file with the units of energy and below my calculations with two products, which I usually eat for breakfast.

Picture: Energy units and my calculations

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