Kilocalories to joules conversion
Kilocalories (kcal) to joules (J), energy conversion calculator and how to convert.
Enter the energy in calories and press the Convert button:
How to convert from kcal to joules
Thermochemical / food kilocalories to joules
1 kcalth = 4184 J
The energy in joules E(J) is equal to 4184 times the energy in thermochemical / food kilocalories E(kcal):
E(J) = 4184 × E(kcal-th)
Example
Convert 0.3 kcalth to joules.
E(J) = 4184 × 0.3 kcalth = 1255.2 J
International kilocalories to joules
1 kcalIT = 4186.8 J
The energy in joules E(J) is equal to 4186.8 times the energy in international kilocalories E(kcal-IT):
E(J) = 4186.8 × E(kcal-IT)
Example
Convert 0.3 kcalIT to joules.
E(J) = 4186.8 × 0.3kcalIT = 1256.04 J
15°C kilocalories to joules
1 kcal15 = 4185.5 J
The energy in joules E(J) is equal to 4185.5 times the energy in 15°C kilocalories E(kcal15):
E(J) = 4185.5 × E(kcal15)
Example
Convert 0.3 kcal15 to joules.
E(J) = 4185.5 × 0.3kcal15 = 1255.65 J
20°C kilocalories to joules
1 kcal20 = 4182 J
The energy in joules E(J) is equal to 4182 times the energy in 20°C kilocalories E(kcal20):
E(J) = 4182 × E(kcal20)
Example
Convert 0.3 kcal20 to joules.
E(J) = 4182 × 0.3kcal20 = 1254.6 J