Watt Hours To Calories Conversion


1 Wh = 859.84522785899 cal

Want to convert from calories to watt hours instead?

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How to convert watt hours to calories (Wh to cal)

The formula for converting watt hours to calories is: cal = Wh × 859.84522785899. To calculate the watt hour value in calories first substitute the watt hour value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 watt hour in calories we follow these steps:

cal = Wh × 859.84522785899

cal = 1 × 859.84522785899

cal = 859.84522785899

In other words, 1 watt hour is equal to 859.84522785899 calories.

Example Conversion

Let's take a look at an example. The step-by-step process to convert 5 watt hours to calories is:

  1. Understand the conversion formula: cal = Wh × 859.84522785899
  2. Substitute the required value. In this case we substitute 5 for Wh so the formula becomes: cal = 5 × 859.84522785899
  3. Calculate the result using the provided values. In our example the result is: 5 × 859.84522785899 = 4299.22613929495 cal

In summary, 5 watt hours is equal to 4299.22613929495 calories.

Converting calories to watt hours

In order to convert the other way around i.e. calories to watt hours, you would use the following formula: Wh = cal × 0.0011622222. To convert calories to watt hours first substitute the calorie value into the above formula, and then execute the calculation. If we wanted to calculate 1 calorie in watt hours we follow these steps:

Wh = cal × 0.0011622222

Wh = 1 × 0.0011622222

Wh = 0.0011622222

Or in other words, 1 calorie is equal to 0.0011622222 watt hours.

Conversion Unit Definitions

What is a Watt Hour?

A watt-hour (Wh) is a unit of energy commonly used in the context of electricity consumption and production. It represents the amount of energy consumed or produced by a one-watt electrical device operating for one hour.
Mathematically, 1 watt-hour is equal to the energy used by a one-watt device over a period of one hour. It can also be expressed as: 1 Wh = 1 watt × 1 hour.
Watt-hours are used to measure the total energy usage of appliances, buildings, or entire power grids over a specific period of time. For example, if a 100-watt light bulb is turned on for 10 hours, it consumes 1,000 watt-hours or 1 kilowatt-hour (kWh) of electricity (since 1 kWh = 1,000 Wh).
Watt-hours are widely used by utility companies to measure and bill for electricity consumption by households and businesses.

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 Hours To Calories Conversion Table

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

Watt Hour (Wh)Calorie (cal)
1 Wh859.84522785899 cal
2 Wh1719.69045571798 cal
3 Wh2579.53568357697 cal
4 Wh3439.38091143596 cal
5 Wh4299.22613929495 cal
6 Wh5159.07136715394 cal
7 Wh6018.91659501293 cal
8 Wh6878.76182287192 cal
9 Wh7738.60705073091 cal
10 Wh8598.4522785899 cal
11 Wh9458.29750644889 cal
12 Wh10318.14273430788 cal
13 Wh11177.98796216687 cal

Other Common Watt Hour Conversions

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

1 watt hour in joules3600 J
1 watt hour in kilojoules3.6 kJ
1 watt hour in megajoules0.0036 MJ
1 watt hour in kilowatt hours0.001 kWh
1 watt hour in megawatt hours0.000001 MWh
1 watt hour in watt seconds3600 Ws
1 watt hour in btus3.4144259497 Btu