Convert kilocalories to kilowatt-hours
Converting kilocalories to kilowatt-hours is a common energy task, whether you are checking a recipe, a spec sheet, a travel distance or a homework problem. Since 1 kcal equals 0.00116222 kWh, the math is a single multiplication — and this page does it for you instantly, with the formula, a table of common values and answers to the questions people ask most.
Exact factor
How to convert kilocalories to kilowatt-hours
To convert kilocalories to kilowatt-hours, multiply the number of kilocalories by 0.00116222. For example, 10 kcal × 0.00116222 = 0.0116222 kWh.
kWh = kcal × 0.00116222
- Write down the value in kilocalories you want to convert.
- Multiply it by 0.00116222 (the exact kcal→kWh factor).
- The result is your value in kilowatt-hours. Check it below with the converter or the table.
Conversion table
Common values of kilocalories and their equivalents in kilowatt-hours:
| kcal | kWh |
|---|---|
| 1 | 0.00116222 |
| 2 | 0.00232444 |
| 3 | 0.00348667 |
| 4 | 0.00464889 |
| 5 | 0.00581111 |
| 10 | 0.0116222 |
| 20 | 0.0232444 |
| 25 | 0.0290556 |
| 50 | 0.0581111 |
| 100 | 0.116222 |
| 250 | 0.290556 |
| 500 | 0.581111 |
About these units
Kilocalorie (kcal). A kilocalorie equals 1,000 small calories and is the 'Calorie' seen on food labels. An adult needs roughly 2,000–2,500 kcal per day, depending on activity.
Kilowatt-hour (kWh). A kilowatt-hour is the energy delivered by one kilowatt over one hour, exactly 3.6 million joules. Household electricity bills and EV batteries are measured in kWh.
Frequently asked questions
How do I convert kilocalories to kilowatt-hours?
To convert kilocalories to kilowatt-hours, multiply the number of kilocalories by 0.00116222. For example, 10 kcal × 0.00116222 = 0.0116222 kWh. Or skip the math: type the value into the converter at the top of this page and the result updates instantly.
How many kilowatt-hours are in 1 kilocalorie?
1 kcal = 0.00116222 kWh. That is the fixed relationship used by this converter and by international standards.
How many kilocalories are in 1 kilowatt-hour?
1 kWh = 860.421 kcal. If you are converting in the opposite direction, use our Kilowatt-hour to Kilocalorie converter for the dedicated table and FAQ.
Is the kilocalories to kilowatt-hours conversion exact?
Yes. Both units are defined by international agreement, so the factor of 0.00116222 is exact. Displayed results are rounded to 6 significant digits only for readability.
What is kilocalorie used for?
A kilocalorie equals 1,000 small calories and is the 'Calorie' seen on food labels. An adult needs roughly 2,000–2,500 kcal per day, depending on activity.