How to convert Joules to Kilocalories:

One joule is equal to 0.000239006 kilocalories:

1 J = 0.000239006 kcal

Formula:

The energy conversion from J to kcal is given by the formula:

The energy in joules E_{(eV)} is equal to the energy in kilocalories E_{(kcal-th)} divided by 4184:

E_{(kcal)} = E_{(J)} / 4184 J