# How do you calculate kJ to Cal?

## How do you calculate kJ to Cal?

To convert from kilojoules to calories you divide the number of kilojoules by 4.2. To convert from calories to kilojoules you multiply the number of kilojoules by 4.2. This easy to use calorie and kilojoule converter can do the calculation for you. Food labels tell you how much energy a food contains in kilojoules.

**Are kJ and Cal the same?**

After all, when we talk about Calories (Cal) and kilojoules (kJ), we are talking about exactly the same thing – both are a measure of the energy provided by foods and drinks.

### How many kilojoules do Australian calories have?

Australia officially dropped the use of calories by 1988. If you think in calories, then 1 calorie = 4.2 kilojoules.

**Is kilocalories the same as calories?**

Checking calories in food The calorie content is often given in kcals, which is short for kilocalories, and also in kJ, which is short for kilojoules. A kilocalorie is another word for what’s commonly called a calorie, so 1,000 calories will be written as 1,000kcals.

## Why are calories not kilojoules?

Calories and kJs both represent energy in the same way that centimetres and feet both measure height. The kilojoule (kJ) is an International system of units (SI) measurement whereas Calorie is a measure of energy using the metric system.

**How many kilojoules should a 14 year old eat?**

How many calories do teenagers need?

Age | Boys | Girls |
---|---|---|

13 | 10,100kJ or 2,414kcal | 9,300kJ or 2,223kcal |

14 | 11,000kJ or 2,629kcal | 9,800kJ or 2,342kcal |

15 | 11,800kJ or 2,820kcal | 10,000kJ or 2,390kcal |

16 | 12,400kJ or 2,964kcal | 10,100kJ or 2,414kcal |

### Does Australia use calories or kilojoules?

A kilojoule (or Calorie) is a unit of energy. In Australia, we use kilojoules (kJ) to measure how much energy people get from consuming a food or drink. The kilojoule content of foods depends on the amount of carbohydrates, fats and proteins present in the food, and the portion size.

**What is a healthy kJ intake?**

about 8700 kilojoules

The average adult needs about 8700 kilojoules (kJ) a day to maintain a healthy weight. But it varies quite a bit – some people need more and others less.

## How do you convert kilocalories to calories?

To convert a kilocalorie measurement to a calorie measurement, multiply the energy by the conversion ratio. The energy in calories is equal to the kilocalories multiplied by 1,000.

**How do you calculate kilocalories?**

If your are speaking about nutritional energy (calories ) obtained from food, The formula is Energy (in Kcal) = 4x (Proteins and carbohydrates mass in grams) + 9 x mass of fat in grams.

### What is a kilocalorie vs calorie?

A kilocalorie is another word for what’s commonly called a calorie, so 1,000 calories will be written as 1,000kcals. Kilojoules are the metric measurement of calories. To find the energy content in kilojoules, multiply the calorie figure by 4.2.

**What is kJ and Cal?**

Calories and kilojoules (often shortened to kcal or kJs) are both units of energy that are used to represent the amount of energy in a food. The kilojoule (kJ) is an International system of units (SI) measurement whereas Calorie is a measure of energy using the metric system.