Kilocalories to joules conversion

Kilocalories (kcal) to joules (J), energy conversion calculator and how to convert.

kcal to joules conversion calculator

Enter the energy in calories and press the Convert button:

Select calorie unit type:  
   
Energy result in joules: J

Joules to kcal conversion ►

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

15ºC kilocalories to joules

1 kcal15 = 4185.5 J

The energy in joules E(J) is equal to 4185.5 times the energy in 15ºC 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

20ºC kilocalories to joules

1 kcal20 = 4182 J

The energy in joules E(J) is equal to 4182 times the energy in 20ºC kilocalories E(kcal20):

E(J) = 4182 × E(kcal20)

Example

Convert 0.3 kcal20 to joules.

E(J) = 4182 × 0.3kcal20 = 1254.6 J

 

Joules to kcal conversion ►

 


See also

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