How many kilowatt-hours are in 1 calorie?

1 calorie equals 0.00000116222 kWh.

How many kilowatt-hours are in 10 calories?

10 cal equals 0.0000116222 kWh.

Use the reverse converter: 1 kilowatt-hour equals 860421 cal.

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

To convert calories to kilowatt-hours, multiply the value by 0.00000116222222.

kWh = cal × 0.00000116222222

40 cal × 0.00000116222222 = 0.00004649 kWh

Calorie (cal): The thermochemical calorie is exactly 4.184 joules, historically the heat to warm one gram of water by 1 °C.
Kilowatt-hour (kWh): The unit on household electricity bills. Equal to 3.6 megajoules.

How do I convert calories to kilowatt-hours?: To convert calories to kilowatt-hours, multiply the value by 0.00000116222222.
How many kilowatt-hours are in 1 calorie?: 1 calorie equals 0.00000116222 kWh.
How many kilowatt-hours are in 10 calories?: 10 cal equals 0.0000116222 kWh.
How do I convert kilowatt-hours back to calories?: Use the reverse converter: 1 kilowatt-hour equals 860421 cal.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.