Online kcal to kilojoules conversion

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kcal to kilojoules conversion

Select calorie unit type, enter the energy in kilocalories and press the Convert button:

Select calorie unit type:
   
Energy result in kilojoules: kJ

kJ to kcal conversion ►

Kilocalories to Kilojoules

One kilocalorie, is equal to the heat needed to raise the temperature of one kilogram of water from 14.5 to 15.5 degrees Celsius.

Kilocalories can be abbreviated as kcal; for example, 1 kilocalorie can be written as 1 kcal.

When being used to measure nutrition or metabolic processes, the large calorie is used, which is equal to one kilocalorie.

One kilojoule is equal to 1,000 joules, which are the energy equal to the force on an object of one newton at a distance of one meter.

The kilojoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "kilo" is the prefix for 103. Kilojoules can be abbreviated as kJ; for example, 1 kilojoule can be written as 1 kJ.

How to convert from kcal to kilojoules

Thermochemical / food kilocalories to kilojoules

1 kcalth = 4.184 kJ

The energy in kilojoules E(kJ) is equal to 4.184 times the energy in thermochecmical / food kilocalories E(kcal):

E(kJ) = 4.184 × E(kcal-th)

Example

Convert 0.3 kcalth to kilojoules.

E(kJ) = 4.184 × 0.3 kcalth = 1.2552 kJ

International kilocalories to kilojoules

1 kcalIT = 4.1868 kJ

The energy in kilojoules E(kJ) is equal to 4.1868 times the energy in international kilocalories E(kcal-IT):

E(kJ) = 4.1868 × E(kcal-IT)

Example

Convert 0.3 kcalIT to kilojoules.

E(kJ) = 4.1868 × 0.3kcalIT = 1.25604 kJ

15°C kilocalories to kilojoules

1 kcal15 = 4.1855 kJ

The energy in kilojoules E(kJ) is equal to 4.1855 times the energy in 15°C kilocalories E(kcal15):

E(kJ) = 4.1855 × E(kcal15)

Example

Convert 0.3 kcal15 to kilojoules.

E(kJ)

= 4.1855 × 0.3kcal15 = 1.25565 kJ

20°C kilocalories to kilojoules

1 cal20 = 4.182 kJ

The energy in kilojoules E(kJ) is equal to 4.182 times the energy in 20°C kilocalories E(kcal20):

E(kJ) = 4.182 × E(kcal20)

Example

Convert 0.3 kcal20

to kilojoules.

E(kJ) = 4.182 × 0.3kcal20 = 1.2546 kJ

 

kJ to kcal conversion ►

 


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