Convert Joules to Megacalories

Enter the energy in joules below to get the value converted to megacalories.

Results in Megacalories:
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1 J = 2.3901E-7 Mcal

How to Convert Joules to Megacalories

To convert a joule measurement to a megacalorie measurement, multiply the energy by the conversion ratio. One joule is equal to 2.3901E-7 megacalories, so use this simple formula to convert:

megacalories = joules × 2.3901E-7

The energy in megacalories is equal to the joules multiplied by 2.3901E-7.

For example, here's how to convert 5 joules to megacalories using the formula above.
5 J = (5 × 2.3901E-7) = 1.195E-6 Mcal

Joules and megacalories are both units used to measure energy. Keep reading to learn more about each unit of measure.


The joule is the energy equal to the force on an object of one newton at a distance of one meter. One joule is equal to the heat energy dissipated by the current of one ampere through one ohm of resistance for one second.

One joule is also equal to the energy needed to move an electric charge of one coulomb through a potential difference of one volt. In addition, one joule is also equal to the one watt-second.

The joule is the SI derived unit for energy in the metric system. Joules can be abbreviated as J, for example 1 joule can be written as 1 J.


One megacalorie is equal to 1,000,000 calories, which are the heat needed to raise the temperature of one gram of water from 14.5 to 15.5 degrees Celsius. One megacalorie is equal to 4.184 megajoules.

Megacalories can be abbreviated as Mcal, for example 1 megacalorie can be written as 1 Mcal.

Joule Measurements and Equivalent Megacalorie Conversions

Common joule values converted to the equivalent megacalorie value
Joules Megacalories
1 J 0.00000023901 Mcal
2 J 0.00000047801 Mcal
3 J 0.00000071702 Mcal
4 J 0.00000095602 Mcal
5 J 0.000001195 Mcal
6 J 0.000001434 Mcal
7 J 0.000001673 Mcal
8 J 0.000001912 Mcal
9 J 0.0000021511 Mcal
10 J 0.0000023901 Mcal
11 J 0.0000026291 Mcal
12 J 0.0000028681 Mcal
13 J 0.0000031071 Mcal
14 J 0.0000033461 Mcal
15 J 0.0000035851 Mcal
16 J 0.0000038241 Mcal
17 J 0.0000040631 Mcal
18 J 0.0000043021 Mcal
19 J 0.0000045411 Mcal
20 J 0.0000047801 Mcal
21 J 0.0000050191 Mcal
22 J 0.0000052581 Mcal
23 J 0.0000054971 Mcal
24 J 0.0000057361 Mcal
25 J 0.0000059751 Mcal
26 J 0.0000062141 Mcal
27 J 0.0000064532 Mcal
28 J 0.0000066922 Mcal
29 J 0.0000069312 Mcal
30 J 0.0000071702 Mcal
31 J 0.0000074092 Mcal
32 J 0.0000076482 Mcal
33 J 0.0000078872 Mcal
34 J 0.0000081262 Mcal
35 J 0.0000083652 Mcal
36 J 0.0000086042 Mcal
37 J 0.0000088432 Mcal
38 J 0.0000090822 Mcal
39 J 0.0000093212 Mcal
40 J 0.0000095602 Mcal

More Joule Energy Conversions

Convert to Kilojoules
1 J is equal to 0.001 kilojoules
Convert to Megajoules
1 J is equal to 1.0E-6 megajoules
Convert to Gigajoules
1 J is equal to 1.0E-9 gigajoules
Convert to Calories
1 J is equal to 0.239006 calories
Convert to Kilocalories
1 J is equal to 0.000239 kilocalories
Watts x Time
Convert to Watt-hours
1 J is equal to 0.000278 watt-hours
Convert to Kilowatt-hours
1 J is equal to 2.7778E-7 kilowatt-hours
Convert to Megawatt-hours
1 J is equal to 2.7778E-10 megawatt-hours
Convert to Watt-seconds
1 J is equal to 1 watt-seconds
Thermal Units
Convert to British Thermal Units
1 J is equal to 0.000948 british thermal units
Convert to Million BTU
1 J is equal to 9.4782E-10 million BTU
Convert to Therms
1 J is equal to 9.4782E-9 therms
Convert to Quads
1 J is equal to 9.4782E-19 quads
Convert to Electronvolts
1 J is equal to 6,241,500,000,000,000,000 electronvolts
Convert to Kiloelectronvolts
1 J is equal to 6,241,500,000,000,000 kiloelectronvolts
Convert to Megaelectronvolts
1 J is equal to 6,241,509,343,260.2 megaelectronvolts