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calories to Kilowatt-hours conversion

calories to Kilowatt-hours conversion table

calories (cal)	Kilowatt-hours (kWh)
0	0
1	0.000001162222222222
2	0.000002324444444444
3	0.000003486666666667
4	0.000004648888888889
5	0.000005811111111111
6	0.000006973333333333
7	0.000008135555555556
8	0.000009297777777778
9	0.00001046
10	0.00001162222222222
20	0.00002324444444444
30	0.00003486666666667
40	0.00004648888888889
50	0.00005811111111111
60	0.00006973333333333
70	0.00008135555555556
80	0.00009297777777778
90	0.0001046
100	0.0001162222222222
1000	0.001162222222222

How to convert calories to kilowatt-hours?

Sure! Let's start by converting calories to kilowatt-hours (kWh).

1 calorie (cal) is defined as the amount of energy needed to raise the temperature of 1 gram of water by 1 degree Celsius. 1 kilowatt-hour (kWh) is a unit of energy equal to one kilowatt (1 kW) of power expended for one hour.

To convert calories to kilowatt-hours: 1 kilocalorie (kcal) = 1000 calories (cal) 1 calorie (cal) ≈ 4.184 joules (J)

Since 1 kilowatt-hour = 3,600,000 joules (J),

we can set up the conversion as follows:

1 calorie (cal) = 4.184 joules (J)

To find the number of kilowatt-hours equivalent to 1 calorie: 1 calorie = 4.184 joules

Now, convert joules to kilowatt-hours: 1 joule = 1/3,600,000 kilowatt-hours

Therefore, 1 calorie = 4.184 J * (1 kWh / 3,600,000 J) ≈ 1.162 x 10^-6 kWh.

Real-world examples of other quantities of calories:

Food Energy:
- A medium-sized apple typically contains about 52 kilocalories (kcal).
  - 52 kcal * 1000 cal/kcal = 52,000 calories.
  - In kWh: 52,000 cal * (1.162 x 10^-6 kWh/cal) ≈ 0.0604 kWh.
Exercise:
- Jogging for 30 minutes can burn approximately 300 kilocalories (kcal).
  - 300 kcal * 1000 cal/kcal = 300,000 calories.
  - In kWh: 300,000 cal * (1.162 x 10^-6 kWh/cal) ≈ 0.3486 kWh.
Daily Caloric Intake:
- The average daily caloric intake for an adult is around 2,000 kilocalories (kcal).
  - 2000 kcal * 1000 cal/kcal = 2,000,000 calories.
  - In kWh: 2,000,000 cal * (1.162 x 10^-6 kWh/cal) ≈ 2.324 kWh.
Appliance Energy Usage:
- A 60-Watt light bulb left running for 1 hour uses 0.06 kWh.
  - 0.06 kWh * (3,600,000 J/kWh) ≈ 216,000 joules.
  - In calories: 216,000 J / 4.184 J/cal ≈ 51,618.6 calories.

These conversions illustrate the energy content in calories for various activities and the equivalent energy in kilowatt-hours.

See below section for step by step unit conversion with formulas and explanations. Please refer to the table below for a list of all the Kilowatt-hours to other unit conversions.

What is calories?

Calories are a unit of measurement that represents the amount of energy your body gets from consuming food and drinks. In other words, they measure the energy content of what you eat.

Here's how it works:

Your body uses calories to function: To grow, repair tissues, and maintain basic bodily functions (like beating your heart or breathing), your body needs a certain amount of energy.
Food provides that energy: When you eat food, the carbohydrates, proteins, and fats in those foods are broken down into different forms of energy. This process is called metabolism.
Calories represent that energy: The total amount of energy from these processes is measured in calories (or kilocalories). One calorie is equal to 4.184 joules.

Think of it like this:

A car engine needs gasoline to run, and a certain amount of gasoline provides a specific amount of energy.
Similarly, your body "runs" on the energy provided by the foods you eat. The more calories in those foods, the more energy they provide for your bodily functions.

Here are some common examples of calorie sources:

1 banana: approximately 100-110 calories
1 apple: around 95 calories
1 cup of cooked rice: about 200-250 calories

When you consume a certain amount of calories, your body uses that energy to perform various functions. Excess calories can lead to weight gain if not balanced with physical activity or burned off through exercise.

Does this help clarify what calories are?

What is kilowatt-hours?

A Kilowatt-hour is a unit of energy and its units, kWh, are formed with W for watt and h for hour from SI unit system combined with letter k, metric prefix, for 1,000 or $10^3$ . Its definition, in the context of electricity, is the energy of one watt power flowing for one hour.

Followings equivalent equations are identical but in different units. Please note that factor $10^3$ is representing Kilo prefix in kWh unit.

1 kWh = 10^3*Pt = 10^3*IVt = 3600 * 10^3*J = 2.247 * 10^{22} * 10^3 eV = 8.598*10^5 * 10^3 cal

$P - Power$
$t - Time \text{ (in hours. Multiply by 3600 to convert to seconds)}$
$I - Current$ $V - Volts$
$J - Joules$
$eV - Electronvolt$
$cal - Calories$

Wikipedia page for Kilowatt-hour (watt-hour redirected to kWh) UCI article on Energy Units and Conversions Ian Woofenden's explanation on difference between Watts and Watt-Hours

Complete calories conversion table

Enter # of calories

Convert 1 cal to other units	Result
calories to Watt-seconds (cal to Ws)	4.184
calories to Watt-minutes (cal to Wm)	0.06973333333333
calories to Watt-hours (cal to Wh)	0.001162222222222
calories to Milliwatt-hours (cal to mWh)	1.1622222222222
calories to Kilowatt-hours (cal to kWh)	0.000001162222222222
calories to Megawatt-hours (cal to MWh)	1.1622222222222e-9
calories to Gigawatt-hours (cal to GWh)	1.1622222222222e-12
calories to Joules (cal to J)	4.184
calories to Kilojoules (cal to kJ)	0.004184
calories to Megajoules (cal to MJ)	0.000004184
calories to Gigajoules (cal to GJ)	4.184e-9
calories to Kilocalories (cal to kcal)	0.001

calories to Kilowatt-hours conversion