How many kJ is 500 BTU?
500 BTU = 527.528 kJ
It is 527.528 kJ, so saying 528 kJ is fine — rounding is within 0.5%.
And how many BTU is 500 kJ?
500 kJ = 473.9085 BTU
Formula: kJ = BTU × 1.055056
BTU to kJ around this value
50 BTU52.7528kJ
100 BTU105.5056kJ
150 BTU158.2584kJ
200 BTU211.0112kJ
250 BTU263.764kJ
300 BTU316.5168kJ
350 BTU369.2696kJ
400 BTU422.0224kJ
450 BTU474.7752kJ
500 BTU527.528kJ
550 BTU580.2808kJ
600 BTU633.0336kJ
650 BTU685.7864kJ
700 BTU738.5392kJ
750 BTU791.292kJ
800 BTU844.0448kJ
850 BTU896.7976kJ
900 BTU949.5504kJ
950 BTU1,002.3032kJ
1,000 BTU1,055.056kJ