How many calorie [I.T.] in 1 megaton?
The answer is 9.9933123148944E+14.
We assume you are converting between calorie [I.T.] and megaton [explosive].
You can view more details on each measurement unit: calorie [I.T.] or
megaton
The SI derived unit for energy is the joule.
1 joule is equal to 0.2388458966275 calorie [I.T.], or 2.3900573613767E-16 megaton.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between calories and megatons.
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You can do the reverse unit conversion from
megaton to calorie [I.T.], or enter any two units below:

International Steam Table Calorie (1956): 1.163 mW h = 4.1868 J exactly. This definition was adopted by the Fifth International Conference on Properties of Steam (London, July 1956).

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