Convert Calories to Kilowatt-hours
Convert Calories to Kilowatt-hours instantly. 1 Calory (cal) equals 0.000001162 Kilowatt-hours (kWh).
Calories to Kilowatt-hours conversion table
| Calories (cal) | Kilowatt-hours (kWh) |
|---|---|
| 1 cal | 0.000001162 kWh |
| 2 cal | 0.000002324 kWh |
| 3 cal | 0.000003487 kWh |
| 5 cal | 0.000005811 kWh |
| 10 cal | 0.00001162 kWh |
| 20 cal | 0.00002324 kWh |
| 50 cal | 0.00005811 kWh |
| 100 cal | 0.0001162 kWh |
| 500 cal | 0.0005811 kWh |
| 1,000 cal | 0.001162 kWh |
1 Calory = 0.000001162 Kilowatt-hours · multiply Calories by 0.000001162
About converting Calories to Kilowatt-hours
Calories (cal) and Kilowatt-hours (kWh) are both units of energy, so converting between them is a single multiplication: multiply your Calories figure by 0.000001162. Ten Calories comes to 0.00001162 Kilowatt-hours, and a hundred works out at 0.0001162 Kilowatt-hours.
Rule of thumb: going from Calories to Kilowatt-hours divides, so the figure always shrinks — it takes about 860,420.65 Calories to make a single Kilowatt-hour. If your answer came out bigger, you have the conversion the wrong way round.
What is a Calory?
The calorie is the unit most likely to be misread, because there are two of them. The small calorie — the one this converter uses — is approximately the heat needed to warm a gram of water by one degree Celsius, and it is a tiny amount of energy. The "calories" printed on food labels are not these: a food Calorie, traditionally written with a capital C, is a thousand small calories, properly a kilocalorie. So a 2,000-calorie daily diet is really about 8.4 million small calories. Several slightly different calories were defined historically; the thermochemical calorie used here is fixed at exactly 4.184 joules.
What is a Kilowatt-hour?
The kilowatt-hour is the unit your electricity bill is charged in, and almost the only energy unit most people meet by name. It is energy, not power: a kilowatt is a rate of use, a kilowatt-hour is the amount consumed by running at that rate for an hour. Utilities bill in kWh because that is what they actually deliver — a meter counts accumulated energy, not instantaneous demand. It is also the unit that sizes batteries. An EV pack and a home storage unit are both quoted in kilowatt-hours, so the figure tells you how much range or backup you have bought, while the kilowatt rating only says how fast it can be delivered.
To put both in perspective: an apple holds roughly 95,000 small calories, while an electric car covers roughly five kilometres on a kilowatt-hour.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Kilowatt-hours to Calories converter, or browse all Energy converters.
Frequently asked questions
How many Kilowatt-hours are in one Calory?
There are 0.000001162 Kilowatt-hours in one Calory.
How do I convert Calories to Kilowatt-hours?
Multiply the number of Calories by 0.000001162. For example, 10 Calories = 0.00001162 Kilowatt-hours.
What is 100 Calories in Kilowatt-hours?
100 Calories is equal to 0.0001162 Kilowatt-hours.
How do I convert Kilowatt-hours to Calories?
Multiply the Kilowatt-hours value by 860,420.65 (or divide by 0.000001162).
Is this Calories to Kilowatt-hours conversion exact?
The definition is exact — Calories and Kilowatt-hours are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.
What is a Calory?
The calorie is the unit most likely to be misread, because there are two of them. The small calorie — the one this converter uses — is approximately the heat needed to warm a gram of water by one degree Celsius, and it is a tiny amount of energy. The "calories" printed on food labels are not these: a food Calorie, traditionally written with a capital C, is a thousand small calories, properly a kilocalorie. So a 2,000-calorie daily diet is really about 8.4 million small calories. Several slightly different calories were defined historically; the thermochemical calorie used here is fixed at exactly 4.184 joules.
What is a Kilowatt-hour?
The kilowatt-hour is the unit your electricity bill is charged in, and almost the only energy unit most people meet by name. It is energy, not power: a kilowatt is a rate of use, a kilowatt-hour is the amount consumed by running at that rate for an hour. Utilities bill in kWh because that is what they actually deliver — a meter counts accumulated energy, not instantaneous demand. It is also the unit that sizes batteries. An EV pack and a home storage unit are both quoted in kilowatt-hours, so the figure tells you how much range or backup you have bought, while the kilowatt rating only says how fast it can be delivered.