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Convert calorie to watt second

Here you can quickly calculate how many watt second fit in one calorie.

- scroll: formula · table · questions -

  • 1 cal = 4.184 Ws
  • 1 Ws = 0.239006 cal

Calorie to watt second conversion table

calorie watt second
1 4.184
2 8.368
5 20.92
10 41.84
20 83.68
50 209.2
100 418.4

Formula to convert calorie to watt second

To convert calorie to watt second, multiply by 4.184.

1 cal = 4.184 Ws
Example: 1 calorie = 4.184 watt second

Common mistakes

  • Food 'calories' are actually kilocalories: 1 kcal = 1,000 cal. A '500-calorie' meal therefore contains 500 kcal, half a million small calories. Labels write the same thing as 'kcal' or as 'Cal' with a capital C.

Quick calorie to/from watt second conversion quiz

Score: 0

8.5 watt second equals 2.23 calorie.

Correct answer: 8.5 watt second = 2.03 calorie.

4.5 calorie equals 16.9 watt second.

Correct answer: 4.5 calorie = 18.8 watt second.

6 calorie equals 25.1 watt second.

Correct answer: 6 calorie = 25.1 watt second.

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