Convert Calories to Kilowatt-hours

Enter the energy in calories below to get the value converted to kilowatt-hours.

Results in Kilowatt-hours:
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1 cal = 1.1622E-6 kWh

How to Convert Calories to Kilowatt-hours

To convert a calorie measurement to a kilowatt-hour measurement, multiply the energy by the conversion ratio. One calorie is equal to 1.1622E-6 kilowatt-hours, so use this simple formula to convert:

kilowatt-hours = calories × 1.1622E-6

The energy in kilowatt-hours is equal to the calories multiplied by 1.1622E-6.

For example, here's how to convert 5 calories to kilowatt-hours using the formula above.
5 cal = (5 × 1.1622E-6) = 5.8111E-6 kWh

Calories and kilowatt-hours are both units used to measure energy. Keep reading to learn more about each unit of measure.


One calorie is equal to the heat needed to raise the temperature of one gram of water from 14.5 to 15.5 degrees Celsius.

When measuring the energy content in foods, the large calorie, or kilocalorie is used, but it's often still just called a "calorie." When both the calorie and large calorie are used in the same context it is common to refer to the calorie as a "small calorie."

Calories can be abbreviated as cal, for example 1 calorie can be written as 1 cal.


A kilowatt-hour is a measure of electrical energy equal to one kilowatt, or 1,000 watts, of power over a one hour period. Kilowatt-hours are a measure of electrical work performed over a period of time, and are often used as a way of measuring energy usage by electric companies.

Kilowatt-hours can be abbreviated as kWh, for example 1 kilowatt-hour can be written as 1 kWh.

Calorie Measurements and Equivalent Kilowatt-hour Conversions

Common calorie values converted to the equivalent kilowatt-hour value
Calories Kilowatt-hours
1 cal 0.0000011622 kWh
2 cal 0.0000023244 kWh
3 cal 0.0000034867 kWh
4 cal 0.0000046489 kWh
5 cal 0.0000058111 kWh
6 cal 0.0000069733 kWh
7 cal 0.0000081356 kWh
8 cal 0.0000092978 kWh
9 cal 0.00001046 kWh
10 cal 0.000011622 kWh
11 cal 0.000012784 kWh
12 cal 0.000013947 kWh
13 cal 0.000015109 kWh
14 cal 0.000016271 kWh
15 cal 0.000017433 kWh
16 cal 0.000018596 kWh
17 cal 0.000019758 kWh
18 cal 0.00002092 kWh
19 cal 0.000022082 kWh
20 cal 0.000023244 kWh
21 cal 0.000024407 kWh
22 cal 0.000025569 kWh
23 cal 0.000026731 kWh
24 cal 0.000027893 kWh
25 cal 0.000029056 kWh
26 cal 0.000030218 kWh
27 cal 0.00003138 kWh
28 cal 0.000032542 kWh
29 cal 0.000033704 kWh
30 cal 0.000034867 kWh
31 cal 0.000036029 kWh
32 cal 0.000037191 kWh
33 cal 0.000038353 kWh
34 cal 0.000039516 kWh
35 cal 0.000040678 kWh
36 cal 0.00004184 kWh
37 cal 0.000043002 kWh
38 cal 0.000044164 kWh
39 cal 0.000045327 kWh
40 cal 0.000046489 kWh

More Calorie Energy Conversions

Convert to Joules
1 cal is equal to 4.184 joules
Convert to Kilojoules
1 cal is equal to 0.004184 kilojoules
Convert to Megajoules
1 cal is equal to 4.184E-6 megajoules
Convert to Gigajoules
1 cal is equal to 4.184E-9 gigajoules
Convert to Kilocalories
1 cal is equal to 0.001 kilocalories
Convert to Megacalories
1 cal is equal to 1.0E-6 megacalories
Watts x Time
Convert to Watt-hours
1 cal is equal to 0.001162 watt-hours
Convert to Megawatt-hours
1 cal is equal to 1.1622E-9 megawatt-hours
Convert to Watt-seconds
1 cal is equal to 4.184 watt-seconds
Thermal Units
Convert to British Thermal Units
1 cal is equal to 0.003966 british thermal units
Convert to Million BTU
1 cal is equal to 3.9657E-9 million BTU
Convert to Therms
1 cal is equal to 3.9657E-8 therms
Convert to Quads
1 cal is equal to 3.9657E-18 quads
Convert to Electronvolts
1 cal is equal to 26,114,000,000,000,000,000 electronvolts
Convert to Kiloelectronvolts
1 cal is equal to 26,114,000,000,000,000 kiloelectronvolts
Convert to Megaelectronvolts
1 cal is equal to 26,114,475,092,200.6 megaelectronvolts