Convert between joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours, electronvolts, BTUs, and foot-pounds. Instant bidirectional conversion with an all-units table.
Result
4.184 kJ
1 kcal = 4.184 kJ
All Conversions from 1 kcal
4184
4.184
1000
1
1.1622222222
0.0011622222
2.611447e+22
3.9656512426
3085.9599149738
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Select "Kilocalorie (kcal)" as the From unit and "Kilojoule (kJ)" as the To unit. Enter your value and the conversion appears instantly. 1 kcal equals approximately 4.184 kJ.
A calorie (cal) is the energy needed to raise 1 gram of water by 1 degree Celsius. A kilocalorie (kcal) equals 1000 calories and is the unit commonly used on food nutrition labels (often written as "Calorie" with a capital C).
The converter supports joule (J), kilojoule (kJ), calorie (cal), kilocalorie (kcal), watt-hour (Wh), kilowatt-hour (kWh), electronvolt (eV), British thermal unit (BTU), and foot-pound (ft·lb).
Conversions use precise standard factors with up to 10 decimal places. Results are displayed with trailing zeros trimmed for readability.
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