Megajoules To Calories Conversion


1 MJ = 238,845.8966275 cal

Want to convert from calories to megajoules instead?

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How to convert megajoules to calories (MJ to cal)

The formula for converting megajoules to calories is: cal = MJ × 238845.8966275. To calculate the megajoule value in calories first substitute the megajoule value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 megajoule in calories we follow these steps:

cal = MJ × 238845.8966275

cal = 1 × 238845.8966275

cal = 238845.8966275

In other words, 1 megajoule is equal to 238845.8966275 calories.

Example Conversion

Let's take a look at an example. The step-by-step process to convert 9 megajoules to calories is:

  1. Understand the conversion formula: cal = MJ × 238845.8966275
  2. Substitute the required value. In this case we substitute 9 for MJ so the formula becomes: cal = 9 × 238845.8966275
  3. Calculate the result using the provided values. In our example the result is: 9 × 238845.8966275 = 2149613.0696475 cal

In summary, 9 megajoules is equal to 2149613.0696475 calories.

Converting calories to megajoules

In order to convert the other way around i.e. calories to megajoules, you would use the following formula: MJ = cal × 0.0000041868. To convert calories to megajoules first substitute the calorie value into the above formula, and then execute the calculation. If we wanted to calculate 1 calorie in megajoules we follow these steps:

MJ = cal × 0.0000041868

MJ = 1 × 0.0000041868

MJ = 0.0000041868

Or in other words, 1 calorie is equal to 0.0000041868 megajoules.

Conversion Unit Definitions

What is a Megajoule?

A megajoule (MJ) is a metric unit of energy in the International System of Units (SI). One megajoule is equal to 1,000,000 joules or 1×106 joules. The prefix "mega-" signifies a factor of one million, so a megajoule is a large unit of energy, often used in contexts where significant amounts of energy are involved.
Megajoules are commonly used in various scientific, engineering, and industrial applications to measure large quantities of energy. For instance, in the field of nutrition, the energy content of food is sometimes measured in megajoules per serving. In energy-related contexts, such as electricity generation or large-scale industrial processes, the energy output or consumption is often expressed in megajoules.

What is a Calorie?

A calorie (cal) is a unit of energy commonly used in nutrition. It represents the amount of energy required to raise the temperature of one gram of water by one degree Celsius (or one degree Kelvin). In the context of nutrition, the term "calorie" usually refers to a kilocalorie, which is equal to 1,000 calories in scientific terms.
The energy content of food and beverages is often measured in kilocalories, abbreviated as kcal or Cal (with an uppercase "C" to distinguish it from the smaller "cal" used in physics).
In scientific terms, 1 kilocalorie is equal to 4.184 kilojoules (kJ). The conversion factor between kilocalories (kcal) and kilojoules (kJ) is 1 kcal = 4.184 kJ.
In everyday language, when people refer to the number of calories in food, they are usually referring to kilocalories. For example, if a food label says a serving contains 200 calories, it means 200 kilocalories or 200,000 calories in scientific terms.

Megajoules To Calories Conversion Table

Below is a lookup table showing common megajoules to calories conversion values.

Megajoule (MJ)Calorie (cal)
1 MJ238845.8966275 cal
2 MJ477691.793255 cal
3 MJ716537.6898825 cal
4 MJ955383.58651 cal
5 MJ1194229.4831375 cal
6 MJ1433075.379765 cal
7 MJ1671921.2763925 cal
8 MJ1910767.17302 cal
9 MJ2149613.0696475 cal
10 MJ2388458.966275 cal
11 MJ2627304.8629025 cal
12 MJ2866150.75953 cal
13 MJ3104996.6561575 cal

Other Common Megajoule Conversions

Below is a table of common conversions from megajoules to other energy units.

1 megajoule in joules1000000 J
1 megajoule in kilojoules1000 kJ
1 megajoule in gigajoules0.001 GJ
1 megajoule in kilocalories238.8458966275 kcal
1 megajoule in watt hours277.77777777778 Wh
1 megajoule in kilowatt hours0.27777777777778 kWh
1 megajoule in megawatt hours0.00027777777777778 MWh
1 megajoule in btus947.08628903179 Btu