How many calorie in 1 megaton [explosive]?
The answer is 9.9956997467629E+14.
We assume you are converting between calorie [15 °C] and megaton [explosive].
You can view more details on each measurement unit: calorie or
megaton [explosive]
The SI derived unit for energy is the joule.
1 joule is equal to 0.23890295761862 calorie, or 2.3900573613767E-16 megaton [explosive].
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between calories and megatons.
Type in your own numbers in the form to convert the units!

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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