Kilocalories to Kilowatt-hours Converter

To convert a measurement in kilocalories to kilowatt-hours, multiply the value by 0.001162222222. The conversion factor comes from the relationship between both units and the joule.

For example, to convert 5 kcal to kilowatt-hours: 5 × 0.001162222222 = 0.005811111111 kWh.

A kilocalorie equals 1,000 small calories, or exactly 4,184 joules, and is the 'Calorie' shown on food nutrition labels. The food Calorie (capital C) is actually a kilocalorie. This convention, established in nutrition science, means a 500-Calorie meal contains 500 kilocalories, or about 2,092 kilojoules.

Common uses of kilocalories include: Food energy (the dietary 'Calorie'); Metabolism and exercise burn estimates; Nutrition and diet planning; Bomb-calorimetry food testing.

A kilowatt-hour equals 1,000 watt-hours, or 3.6 million joules, and is the standard unit for billing electrical energy. The kilowatt-hour became the universal unit of electricity metering because it conveniently expresses household consumption. Running a 1,000-watt appliance for one hour uses exactly one kWh.

Common uses of kilowatt-hours include: Household electricity billing; Electric vehicle battery capacity; Home solar and battery systems; Energy audits and efficiency ratings.

Here are some common values converted:

1 kcal = 0.001162222222 kWh 5 kcal = 0.005811111111 kWh 10 kcal = 0.011622222222 kWh 50 kcal = 0.058111111111 kWh 100 kcal = 0.116222222222 kWh