Calories to Watt-seconds Conversion

Enter the energy in calories below to get the value converted to watt-seconds.

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Results in Watt-seconds:
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1 cal = 4.184 Ws

How to Convert Calories to Watt-seconds

To convert a calorie measurement to a watt-second measurement, multiply the energy by the conversion ratio. One calorie is equal to 4.184 watt-seconds, so use this simple formula to convert:

watt-seconds = calories × 4.184

The energy in watt-seconds is equal to the calories multiplied by 4.184.

For example, here's how to convert 5 calories to watt-seconds using the formula above.
5 cal = (5 × 4.184) = 20.92 Ws

Calories and watt-seconds are both units used to measure energy. Keep reading to learn more about each unit of measure.

Calories

One calorie is equal to the heat needed to raise the temperature of one gram of water from 14.5 to 15.5 degrees Celsius.

When measuring the energy content in foods, the large calorie, or kilocalorie is used, but it's often still just called a "calorie." When both the calorie and large calorie are used in the same context it is common to refer to the calorie as a "small calorie."

Calories can be abbreviated as cal, for example 1 calorie can be written as 1 cal.

Watt-seconds

The watt-second is a measure of electrical energy equal to one watt of power over a one second period. One watt-second is equal to 1/3,600 of a watt-hour or one joule.

Watt-seconds can be abbreviated as Ws, for example 1 watt-second can be written as 1 Ws.

Calorie to Watt-second Conversion Table

Calorie measurements converted to watt-seconds
Calories Watt-seconds
1 cal 4.184 Ws
2 cal 8.368 Ws
3 cal 12.55 Ws
4 cal 16.74 Ws
5 cal 20.92 Ws
6 cal 25.1 Ws
7 cal 29.29 Ws
8 cal 33.47 Ws
9 cal 37.66 Ws
10 cal 41.84 Ws
11 cal 46.02 Ws
12 cal 50.21 Ws
13 cal 54.39 Ws
14 cal 58.58 Ws
15 cal 62.76 Ws
16 cal 66.94 Ws
17 cal 71.13 Ws
18 cal 75.31 Ws
19 cal 79.5 Ws
20 cal 83.68 Ws
21 cal 87.86 Ws
22 cal 92.05 Ws
23 cal 96.23 Ws
24 cal 100.42 Ws
25 cal 104.6 Ws
26 cal 108.78 Ws
27 cal 112.97 Ws
28 cal 117.15 Ws
29 cal 121.34 Ws
30 cal 125.52 Ws
31 cal 129.7 Ws
32 cal 133.89 Ws
33 cal 138.07 Ws
34 cal 142.26 Ws
35 cal 146.44 Ws
36 cal 150.62 Ws
37 cal 154.81 Ws
38 cal 158.99 Ws
39 cal 163.18 Ws
40 cal 167.36 Ws