Watt Seconds To Calories Conversion


1 Ws = 0.2390057361 cal

Want to convert from calories to watt seconds instead?

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How to convert watt seconds to calories (Ws to cal)

The formula for converting watt seconds to calories is: cal = Ws × 0.2390057361. To calculate the watt second value in calories first substitute the watt second value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 watt second in calories we follow these steps:

cal = Ws × 0.2390057361

cal = 1 × 0.2390057361

cal = 0.2390057361

In other words, 1 watt second is equal to 0.2390057361 calories.

Example Conversion

Let's take a look at an example. The step-by-step process to convert 4 watt seconds to calories is:

  1. Understand the conversion formula: cal = Ws × 0.2390057361
  2. Substitute the required value. In this case we substitute 4 for Ws so the formula becomes: cal = 4 × 0.2390057361
  3. Calculate the result using the provided values. In our example the result is: 4 × 0.2390057361 = 0.9560229444 cal

In summary, 4 watt seconds is equal to 0.9560229444 calories.

Converting calories to watt seconds

In order to convert the other way around i.e. calories to watt seconds, you would use the following formula: Ws = cal × 4.1868. To convert calories to watt seconds first substitute the calorie value into the above formula, and then execute the calculation. If we wanted to calculate 1 calorie in watt seconds we follow these steps:

Ws = cal × 4.1868

Ws = 1 × 4.1868

Ws = 4.1868

Or in other words, 1 calorie is equal to 4.1868 watt seconds.

Conversion Unit Definitions

What is a Watt Second?

A watt-second (Ws), also known as a joule (J), is a unit of energy in the International System of Units (SI). It represents one watt of power expended for one second. Mathematically, it can be defined as: 1 watt-second (Ws) = 1 watt (W) × 1second (s) = 1 joule (J).
Watt-seconds are used to measure the energy consumed or produced by electronic devices or electrical systems in a very short amount of time. For example, the energy released by a camera flash, the energy stored in capacitors, or the energy consumed by a small electronic circuit during its operation can be measured in watt-seconds.
In practical terms, a watt-second is a relatively small unit of energy. To provide some context, 1 watt-second is equivalent to the energy required to power a 1-watt device for 1 second.

What is a Calorie?

A calorie (cal) is a unit of energy commonly used in nutrition. It represents the amount of energy required to raise the temperature of one gram of water by one degree Celsius (or one degree Kelvin). In the context of nutrition, the term "calorie" usually refers to a kilocalorie, which is equal to 1,000 calories in scientific terms.
The energy content of food and beverages is often measured in kilocalories, abbreviated as kcal or Cal (with an uppercase "C" to distinguish it from the smaller "cal" used in physics).
In scientific terms, 1 kilocalorie is equal to 4.184 kilojoules (kJ). The conversion factor between kilocalories (kcal) and kilojoules (kJ) is 1 kcal = 4.184 kJ.
In everyday language, when people refer to the number of calories in food, they are usually referring to kilocalories. For example, if a food label says a serving contains 200 calories, it means 200 kilocalories or 200,000 calories in scientific terms.

Watt Seconds To Calories Conversion Table

Below is a lookup table showing common watt seconds to calories conversion values.

Watt Second (Ws)Calorie (cal)
1 Ws0.2390057361 cal
2 Ws0.4780114722 cal
3 Ws0.7170172083 cal
4 Ws0.9560229444 cal
5 Ws1.1950286805 cal
6 Ws1.4340344166 cal
7 Ws1.6730401527 cal
8 Ws1.9120458888 cal
9 Ws2.1510516249 cal
10 Ws2.390057361 cal
11 Ws2.6290630971 cal
12 Ws2.8680688332 cal
13 Ws3.1070745693 cal

Other Common Watt Second Conversions

Below is a table of common conversions from watt seconds to other energy units.

1 watt second in joules1 J
1 watt second in kilojoules0.001 kJ
1 watt second in gigajoules0.000000001 GJ
1 watt second in watt hours0.0002777778 Wh
1 watt second in kilowatt hours0.0000002777778 kWh
1 watt second in electron volts6241509647120400000 eV