| Grefrath to Oschersleben | 215.48 mi (346.78 km) |
| Grefrath to Osnabruck | 98.04 mi (157.78 km) |
| Grefrath to Ostbevern | 80.70 mi (129.87 km) |
| Grefrath to Osterburg | 251.17 mi (404.21 km) |
| Grefrath to Ostercappeln | 106.91 mi (172.06 km) |
| Grefrath to Osterhofen | 347.73 mi (559.62 km) |
| Grefrath to Osterholz-Scharmbeck | 166.38 mi (267.76 km) |
| Grefrath to Osternienburg | 245.80 mi (395.57 km) |
| Grefrath to Osterode | 170.27 mi (274.02 km) |
| Grefrath to Osterwieck | 192.55 mi (309.87 km) |
| Grefrath to Ostfildern | 221.36 mi (356.24 km) |
| Grefrath to Osthofen | 142.42 mi (229.21 km) |
| Grefrath to Ostrhauderfehn | 134.34 mi (216.20 km) |
| Grefrath to Ostringen | 179.82 mi (289.40 km) |
| Grefrath to Oststeinbek | 221.83 mi (357.00 km) |
