Calories in Kilojoules Conversion Tool - calcount

Convert kilojoules to calories with the help of this convenient converter. Use the calculator located below this one to perform the inverse calculation, which is to convert kilojoules to calories. There is no difference in the amount of energy contained in a kilojoule (kJ) and a calorie (also written as kilocalorie, kcal, or Cal). 239, given that each calorie has a content of 4 184 kilojoules Kilojoules can easily be converted to calories (kcal) by simply adjusting the slider or typing in a value:

Calories to kilojoules is the conversion that needs to be made.

Kilojoules to calories is the inverse calculation of the tool that converts kilojoules to calories, and you can use it to convert calories to kilojoules. You can either manually enter the number of calories you need or use the slider to get there; the calculator will then tell you how many kilojoules it contains (the calorie value multiplied by 4). 184 equals kilojoule value):

Conversions Frequently Used Between Calories and kilojoules

Our kilojoules to calories calculator's top ten most frequently used conversions are as follows:
Conversions from kilojoules to caloric units can be found here:


For your convenience, the following table provides several calorie-to-kilojoule conversions that are among the most frequently looked up.

Make use of this handy table as a quick reference to convert kilojoules to calories and vice versa:

Calories/kcal/Cal Kilojoules/kJ 1000 4184 1 4.184 5 21 10 42 50 209 100 418 250 1046 300 1255 500 2092 2000 8368 2200 9205 3000 12552 5000 20920 The kJ values have been rounded to the nearest whole number.

Read on after you've completed the conversion to find out more about the measurement units that are utilized in the process of converting food to energy.

Converting kilojoules to calories (which is the same thing but with energy)

Kilojoules and calories are two different units of measurement for the same thing; however, when trying to use one or the other or both at the same time, even experts can find themselves in a state of confusion. It is not helpful that there is a great deal of jargon and different wording for the concepts that are identical. Is the term "Energy" that appears on the back of your food package synonymous with "Calories," "kcal," "kilojoules," "large calories," "Cal" and "kJ"? Yes This is why:

Why We Should Care About Calories and Kilojoules

Why do food packaging labels measure the amount of energy in kilojoules (kJ) instead of calories (kcal, or Cal)? Is it possible that they refer to the same thing? Why does it seem like foods contain thousands of kilojoules but only hundreds of calories? Kilocalories (kcal) is what some people refer to, while others use the term "calories." Others, however, insist that the "C" in the word "calorie" should be capitalized.

How is it possible that different converters can produce such drastically different results when converting kilojoules to calories? Why don't we go by our full name, which is the Kilojoule Counter Australia, when our business is called Calorie Counter Australia? There are a lot of questions; how about some answers?

Calories and Kilojoules measure the same thing

The same quantity can be measured using a variety of units.

For the purposes of this discussion, it is important to note that the terms "calories" and "kilojoules" refer to the same thing: energy, or the capacity to perform work. Movement is what work is. To be sure, topics like these are typically covered in physics classes at schools.

Both "kilojoule" and "calorie" refer to the amount of work that our bodies are able to accomplish as a result of consuming food. Do you have any questions about how this impacts a healthy body weight? You can get a more in-depth explanation of the idea by reading the page that introduces our website.

Why are kilojoules used on food labels?

Kilojoules, abbreviated as "kJ," are the unit of measurement used by the Australian government for the amount of energy contained in food. It is a requirement imposed by the public health guide. However, this was not always the case, as the term "calories" or "Cal" was used instead of "calories" from the year 1812 until the 1970s.  

kilojoules to calories in an egg The Calorie Counter Australia provides information in both Cal and kJ units.

When we switched to using the metric system, the switch was just one of the many things that were different. In 1970, the Australian Metric Conversion Act was passed by Parliament, and shortly afterward, government agencies began implementing the law. After that, young people were instructed not in Cal but in kJ.

It is for this reason that modern packaging labels list kJ rather than Cal.

They are still in use.

The following are the primary reasons why we continue to use calories rather than kilojoules:

First, throughout most of our country's history, the term "calories" has been and continues to be the one most commonly used. Even those who were born after 1974, the year in which the major shifts took place, have stubbornly clung to the outdated system. A distinction that has no bearing on the outcome is not a distinction at all.

Reason No. 2: The Transmission of Culture It is possible that Australia and New Zealand are the only significant English-speaking countries to have officially chosen kJ over kcal. However, this is not the case. That works out to 30 million people who allegedly say they consume "kilojoules," compared to the 400 million who consume "calories." Because virtually every book, movie, television show, podcast, webcast, song, and article uses the term "calories" rather than "kilojoules," we do as well. People who are healthy have a strong concentration on them.

Scroll down to the bottom of this page to watch the music video for "Kaluli." This song has exploded in popularity in China and is about some performers who are trying in vain to cut back on their calorie intake ("kaluli"). It is instructive to note that the English term "food energy" has been borrowed into Chinese as "kaluli," rather than "kilojuli."  

This particular instance of pop culture, along with many others, demonstrates that the term has become deeply ingrained in the culture of the world, in contrast to the fact that the term "kilojoules" has not.  

Scientists Use Calories Chemists use kcal

Calories are a measurement that scientists make use of.

In addition, even the worldwide scientific community has steadfastly refused to abandon the calorie. In spite of the widespread use of the SI system in scientific research around the world, it would appear that the standard practice in chemistry is to make use of kilocalories rather than kilojoules.

A device known as a bomb calorimeter is used to determine the amount of energy contained in food. In the realm of scientific study, there is an entire subfield known as calorimetry. Instead of referring to it as the Daily per Capita kilojoule supply, the World Health Organization prefers to talk about the Daily per Capita calorie supply.

How many calories are in a kilocalorie?

The same way that one thousand joules (J) are contained in one kilojoule (kJ), one thousand calories (cal) are contained in one kilocalorie (kcal). To put it another way, the "old" system of measurement and the newer joules system both use decimals as their units of measurement.

are kcal and calories the same

Here we get to the tricky part: the generally accepted convention is to call kilocalories "Calories," with an uppercase "C," while calories, which are one thousandth of a kilocalorie, keep their lowercase "c" There is a common tendency for people to confuse the two meanings, and they do not use a capital "C" even when they are referring to kilocalories rather than calories. "kcal" and "Cal" are the abbreviations for "calories" and "kilocalories," respectively, whereas "cal" is the abbreviation for "calories."

A calorie is equal to how many kilojoules? Conversion Misunderstanding

Because of this, the outcomes provided by various health tools can appear to be completely unpredictable, depending on whether or not the users are anticipating the display of kilocalories. If you use one of those converters to try to convert 1,200 calories, you will get the result 5 kilojoules, which is obviously not correct. 5 kilojoules is the amount of energy that is contained in one third of a gram of Weet-Bix.

When most people talk about calories, what they really mean is kilocalories. This only serves to make things even more confusing. Specifically, kilocalories or calories, not cals. It is a reasonable assumption to make that kilocalories (kcal/Cal) are being referred to whenever the term "calorie" or its abbreviation "cal" is being used in everyday conversation.   

Infographic showing how to convert kilojoules to calories

An infographic displaying the formula for converting kilojoules to calories:

How to convert kJ to Cal Infographic One calorie is equal to four milligrams of fat. 184 kilojoules

Instructions for Converting kilojoules to Calories

The formula for converting kilojoules to calories is presented in the infographic that can be found above. As can be seen, the conversion from kilojoules to calories uses a fairly straightforward formula. Given that one Cal is equivalent to four 184 kJ, you only need to divide the kilojoule value by 4, and you will have your answer. 184 to get the equivalent in California dollars Dividing by 4 Multiplying by zero results in the same number as 184. 239

The formula in question is as follows:

E (Cal) = E (kJ) x 0 239

Don't worry; you won't need to fish your pocket calculator out of your pocket because you can use our converter instead.

kilojoules to caloric units Rule of thumb

People will occasionally tell you that, in order to estimate the number of calories or kilojoules in a food, all you need to do is divide the number by 4 or multiply it by 4. At Calorie Counter Australia, we are adamant about utilizing the more accurate 4 184 as a rate of conversion given that 0 184 is greater than 4% of 4. 184 Although it might not seem like much at first, when you consider that 4% of a normal person's daily energy intake could easily be 100 calories, you can see that it is significant. About the same amount can be found in a banana of a size in between medium and large.

kJ VS cal

The macronutrients (macros) in the food that we eat, specifically carbohydrates (including sugar), fat, and protein, are the primary sources of the majority of the energy that our bodies require. These macros all have varying amounts of the same kind of energy within them, but in different proportions. Protein and carbohydrates both provide 4 calories per gram, but one gram of fat results in 9 calories being released into the body. This equates to 38 kilojoules per gram for fat, while protein and carbohydrates each have 17 kilojoules per gram.

Macronutrient Calories per 1 gram Kilojoules per 1 gram Fat 9 38 Protein 4 17 Carbohydrate 4 17
Macronutrients Calories and Kilojoules

In addition to the conversion (1 kilocalories = 4 814 kilojoules), the energy content of the food is the same in both units (kcal and kJ), so there is no difference between the two.

Calories vs. kilojoules: Does It Really Make a Difference?

After discussing the distinction between kilojoules and calories and determining how to convert between the two, we are now in a position to answer the following question: does it make a difference which one we use? In principle, given that both of these are standard units for determining energy levels, it really shouldn't make a difference in the end. The fact that we can use either kilojoules or calories to record and compare what we consume (or plan to consume) at any given time is the feature of kilojoules and calories that is the most important. The following considerations are likely to be the deciding factors for you:


Kilojoules, and in some cases both kilojoules and calories, are listed on the nutrition labels of all packaged goods sold in Australia. The majority of online resources that are available in the English language list the amount of energy in calories, and some list both. The kilojoule appears to be the most appropriate measurement to use if the majority of the information regarding the nutritional value of your food comes from the packaging. If the majority of the information you get about nutrition comes from digital sources, then kilocalories are probably more convenient for you.


How simple do you find it to decipher the nutrition facts on the back of the package to determine the amount of energy that each food contains? Kilojoules are listed both per "serve" and per 100 grams on the nutrition labels of packaged foods. Can you effectively use the label in your head or electronically (with the assistance of a digital app) on a day-to-day basis? Would using digital alternatives to the nutrition label help you complete the task in a more straightforward manner? If you decide that going with the digital option is the way to go, you should probably get Calories for the reasons that were outlined above.

Recipe kJ or cal

Is it simple to convert between different units, such as kilojoules and calories? How difficult is it to locate a printed cross-reference table, an online conversion tool, or to perform a calculation in your head? If it is simple to transition from Cal to kJ and vice versa, then perhaps both options are equally appealing.


Which measurement units are typically provided in your cookbook, website, or mobile app? In the long run, it is more convenient to familiarize oneself with the unit of measurement that is most commonly used, as opposed to having to perform conversions for each individual dish or component that is being prepared.

Gym Equipment

There are other factors to think about in addition to the food that we consume. Most of today's exercise machines at the gym are equipped with "smart" panels that can track the amount of calories you burn while you're working out. Does the apparatus show calories, kilojoules, or either of these? In today's world, maintaining a healthy lifestyle requires a quantitative approach to exercise.

Putting considerations of usage to the side, the primary focus should be on learning what each term means. Use whichever unit of measurement you decide to go with to evaluate your options and keep track of the amount of energy you get from food. You can accomplish both goals by using our calorie tracker; all you need is a free account with

The Calorie In Popular Culture

The term "calorie" has become ingrained in our global culture in a way that the term "kilojoule" has not yet been able to accomplish. Don't believe us Find out what all the hip kids are singing about here:

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