## What is kcal?

What is a kcal unit?

## kcal definition

kcal is the symbol of kilocalorie.

One kilocalorie is equal to 1000 calories.

## Small & large calories

Small calorie(cal) is the energy needed to increase 1 gram of water by 1ºC at a pressure of 1 atmosphere.

Large calorie(Cal) is the energy needed to increase 1 kg of water by 1ºC at a pressure of 1 atmosphere.

Large calorieis also calledfood calorieand is used as a unit of food energy.There are several definitions of calorie according to temperature.

## kcal conversions

## kcal to cal conversion

One kilocalorie is equal to 1000 small calories:

1 kcal = 1000 cal

One kilocalorie is equal to 1 large/food calorie:

1 kcal = 1 Cal

## kcal to kilojoules conversion

There are several definitions of calorie:

## Thermochemical / food kilocalories to kilojoules

1 kcal

_{th}= 4.184 kJThe energy in kilojoules

E_{(kJ)}is equal to 4.184 times the energy in thermochecmical / food kilocaloriesE_{(kcal)}:

E_{(kJ)}= 4.184× E_{(kcal-th)}## International kilocalories to kilojoules

1 kcal

_{IT}= 4.1868 kJThe energy in kilojoules

E_{(kJ)}is equal to 4.1868 times the energy in international kilocaloriesE_{(kcal-IT)}:

E_{(kJ)}= 4.1868× E_{(kcal-IT)}## 15ºC kilocalories to kilojoules

1 kcal

_{15}= 4.1855 kJThe energy in kilojoules

E_{(kJ)}is equal to 4.1855 times the energy in 15ºC kilocaloriesE_{(kcal15)}:

E_{(kJ)}= 4.1855× E_{(kcal15)}## 20ºC kilocalories to joules

1 cal

_{20}= 4.182 kJThe energy in kilojoules

E_{(kJ)}is equal to 4.182 times the energy in 20ºC kilocaloriesE_{(kcal20)}:

E_{(kJ)}= 4.182× E_{(kcal20)}

kcal to kJ conversion calculator ►

## See also