Kilojoules

\[\begin{aligned} y[Joule] &= 1000x[Kilojoule] \\ y[gram\text{-}calorie] &= 239.006x \\ y[Kilocalorie] &= 0.239006x \\ y[Watt\ hour] &= 0.277778x \\ y[Kilowatt\ hour] &= 0.000277778x \\ y[Electronvolt] &= 6.242 \times 10^{21}x \\ y[British\ thermal\ unit] &= 0.947817x \\ y[US\ therm] &= 9.4804 \times 10^{-6}x \\ y[foot\ pound] &= 737.562x \end{aligned}\]