500AU是多少km？
500AU = 74,798,935,350km
是74,798,935,350km，所以说成74,798,935,350km也没问题——四舍五入的误差在0.5%以内。
反过来，500km是多少AU？
500km = 0AU
计算公式: km = AU × 149,597,870.7
该数值前后的 AU → km
50 AU7,479,893,535km
100 AU14,959,787,070km
150 AU22,439,680,605km
200 AU29,919,574,140km
250 AU37,399,467,675km
300 AU44,879,361,210km
350 AU52,359,254,745km
400 AU59,839,148,280km
450 AU67,319,041,815km
500 AU74,798,935,350km
550 AU82,278,828,885km
600 AU89,758,722,420km
650 AU97,238,615,955km
700 AU104,718,509,490km
750 AU112,198,403,025km
800 AU119,678,296,560km
850 AU127,158,190,095km
900 AU134,638,083,630km
950 AU142,117,977,165km
1,000 AU149,597,870,700km