| Did you mean to convert | megajoule | to | calorie [15 °C] calorie [I.T.] calorie [nutritional] calorie [thermochemical] |
How many megajoule in 1 cal? The answer is 4.1858E-6. We assume you are converting between megajoule and calorie [15 °C]. You can view more details on each measurement unit: megajoule or cal The SI derived unit for energy is the joule. 1 joule is equal to 1.0E-6 megajoule, or 0.23890295761862 cal. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between megajoules and calories. Type in your own numbers in the form to convert the units!
1 megajoule to cal = 238902.95762 cal
2 megajoule to cal = 477805.91524 cal
3 megajoule to cal = 716708.87286 cal
4 megajoule to cal = 955611.83047 cal
5 megajoule to cal = 1194514.78809 cal
6 megajoule to cal = 1433417.74571 cal
7 megajoule to cal = 1672320.70333 cal
8 megajoule to cal = 1911223.66095 cal
9 megajoule to cal = 2150126.61857 cal
10 megajoule to cal = 2389029.57619 cal
You can do the reverse unit conversion from cal to megajoule, or enter any two units below:
The SI prefix "mega" represents a factor of 106, or in exponential notation, 1E6.
So 1 megajoule = 106 joules.
The definition of a joule is as follows:
The joule (symbol J, also called newton meter, watt second, or coulomb volt) is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honor of the physicist James Prescott Joule (1818-1889).
15 °C calorie: the amount of energy required to warm 1 g of air-free water from 14.5 °C to 15.5 °C at a constant pressure of 101.325 kPa (1 atm). Experimental values of this calorie ranged from 4.1852 J to 4.1858 J. The CIPM in 1950 published a mean experimental value of 4.1855 J, noting an uncertainty of 0.0005 J.
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