500mphは何m/sですか？
500mph = 223.52m/s
223.52m/sなので224m/sと言っても差し支えありません — 誤差は0.5%以内です。
逆に500m/sは何mphですか？
500m/s = 1,118.4681mph
計算式: m/s = mph × 0.44704
mph → m/s 前後の値
50 mph22.352m/s
100 mph44.704m/s
150 mph67.056m/s
200 mph89.408m/s
250 mph111.76m/s
300 mph134.112m/s
350 mph156.464m/s
400 mph178.816m/s
450 mph201.168m/s
500 mph223.52m/s
550 mph245.872m/s
600 mph268.224m/s
650 mph290.576m/s
700 mph312.928m/s
750 mph335.28m/s
800 mph357.632m/s
850 mph379.984m/s
900 mph402.336m/s
950 mph424.688m/s
1,000 mph447.04m/s