Kilocalories to Kilowatt Hours
An instant kilocalories-to-kilowatt hours converter, with the formula and a reference table below.
| Kilocalories | Kilowatt Hours |
|---|---|
| 1 kcal | 0.001162 kWh |
| 2 kcal | 0.002324 kWh |
| 3 kcal | 0.003487 kWh |
| 5 kcal | 0.005811 kWh |
| 10 kcal | 0.011622 kWh |
| 25 kcal | 0.029056 kWh |
| 50 kcal | 0.058111 kWh |
| 100 kcal | 0.116222 kWh |
How to use
- Enter a value in the Kilocalories field.
- The Kilowatt Hours figure appears immediately — no button to press.
- Typing in the Kilowatt Hours field converts back to Kilocalories the same way.
- Use the reference table for the values that come up most often.
Kilocalories to Kilowatt Hours formula
To convert kilocalories to kilowatt hours, multiply by 0.00116222222.
kWh = kcal × 0.00116222222
Why this factor: the kilocalorie and the kilowatt-hour are both defined against the joule, so dividing one definition by the other gives 0.00116222222 directly. Both definitions are set out in full below.
To go the other way, divide by 0.00116222222 — or use the Kilowatt Hours to Kilocalories converter, which is the same calculation reversed.
Worked example
Start with 500 kcal. Multiply by 0.00116222222 to get 0.581111 kWh.
500 kcal × 0.00116222222 = 0.581111 kWh
The converter above does this for any value you type, in either direction.
What is a kilocalorie?
A kilocalorie is 1,000 calories, and is what food labeling calls a 'Calorie'.
Definition: Exactly 4,184 joules.
Where it is used: Nutrition and dietary energy in the US and much of the world, and metabolic measurements.
Worth knowing: Written with a capital C ('Calorie') or as 'kcal' on labels. This is the unit meant by everyday talk about counting calories.
What is a kilowatt-hour?
A kilowatt-hour is the standard billing unit for electricity — one kilowatt drawn for one hour.
Definition: Exactly 3.6 megajoules.
Where it is used: Electricity bills worldwide, solar generation figures, and electric vehicle battery capacity.
Kilocalories vs Kilowatt Hours
The kilocalorie and the kilowatt-hour belong to the same family of units, so converting between them is usually a matter of shifting a decimal point or applying a small whole-number factor.
Frequently asked questions
How many kilowatt hours are in a kilocalorie?
One kilocalorie equals 0.00116222222 kilowatt hours.
What is the formula to convert kilocalories to kilowatt hours?
Multiply the number of kilocalories by 0.00116222222. To reverse it, divide by 0.00116222222 instead.
How do I convert kilowatt hours back to kilocalories?
Divide by 0.00116222222, which is the same as multiplying by 860.42065.
How many kilowatt hours are in 10 kilocalories?
10 kcal works out to 0.011622 kWh.
Is there anything to watch out for with kilocalories?
Written with a capital C ('Calorie') or as 'kcal' on labels. This is the unit meant by everyday talk about counting calories.
How is the kilocalorie defined?
Exactly 4,184 joules.