| Cities | Distance |
|---|---|
| Erkrath to Oria | 900.74 mi (1,449.60 km) |
| Erkrath to Oristano | 786.14 mi (1,265.18 km) |
| Erkrath to Orta Nova | 801.03 mi (1,289.13 km) |
| Erkrath to Orte | 657.95 mi (1,058.87 km) |
| Erkrath to Ortona | 707.20 mi (1,138.12 km) |
| Erkrath to Orvieto | 636.29 mi (1,024.00 km) |
| Erkrath to Orzinuovi | 425.53 mi (684.83 km) |
| Erkrath to Osimo | 616.33 mi (991.89 km) |
| Erkrath to Ospitaletto | 417.51 mi (671.92 km) |
| Erkrath to Ostuni | 885.60 mi (1,425.24 km) |
| Erkrath to Ottaviano | 802.32 mi (1,291.21 km) |
| Erkrath to Ovada | 461.93 mi (743.41 km) |
| Erkrath to Ozieri | 741.83 mi (1,193.86 km) |
| Erkrath to Paceco | 955.20 mi (1,537.24 km) |
| Erkrath to Pachino | 1,080.22 mi (1,738.44 km) |