How to convert energy of 5 kilojoules (kJ) to joules (J).
The energy E in joules (J) is equal to 5 kilojoules times 1000:
E(J) = 5kJ × 1000 = 5000J
So 5 kilojoules (kJ) are equal to 5000 joules (J):
5 kJ = 5000 J
How to convert kJ to joules ►