How Many Calories in Uranium 235

How many calories are in 1kg of uranium 235?

of 1 kg U-235, 19 billion kilocalories are released, i.e. 1 kg uranium-235 corresponds to 2.7 million kg coal equivalent.

How many calories are in one atom of uranium?

Uranium contains about 18 million kCal per gram (those are food Calories; capital C), or about 18 billion calories per gram (those are heat calories).