Energy
Calories to Kilowatt-hours
Convert calories to kilowatt-hours instantly.
About this conversion
A calorie (cal) is the energy needed to raise 1 g of water by 1°C. 1 cal = 4.184 J. Kilowatt-hours (kWh) are the standard unit on electricity bills. 1 kWh = 1,000 Wh. 860,420 calories equal 1 Kilowatt-hours. The converter above calculates the result instantly — you can also swap the units to convert in the other direction.
How to use
Enter a value in the calories field and instantly see the result in kilowatt-hours. Click the swap button to reverse the conversion.
Manual calculation
1 calories = 0.0000011622 kilowatt-hours. Example: 10 cal = 0.000011622 kWh.
Frequently asked questions
How do you convert calories to kilowatt-hours?
Divide the number of calories by 860,420 to get kilowatt-hours. Example: 100,000 cal ÷ 860,420 = 0.11622 kWh.
Are calories bigger or smaller than kilowatt-hours?
Calories is smaller than Kilowatt-hours. There are 860,420 calories in one kilowatt-hour, so the result is a smaller number when converting from calories to kilowatt-hours.
What is 10,000 calories in kilowatt-hours?
10,000 cal equals 0.011622 kWh.
How many calories are in 1 kilowatt-hour?
1 kWh equals 860,420 cal. This is the reverse conversion — useful if you have a value in kilowatt-hours and want it in calories.
What is calorie?
A calorie (cal) is the energy needed to raise 1 g of water by 1°C. 1 cal = 4.184 J.
What is kilowatt-hour used for?
Kilowatt-hours (kWh) are the standard unit on electricity bills. 1 kWh = 1,000 Wh.