| Fehmarnsund to Oegstgeest | 317.61 mi (511.14 km) |
| Fehmarnsund to Oirschot | 317.73 mi (511.34 km) |
| Fehmarnsund to Oisterwijk | 317.14 mi (510.38 km) |
| Fehmarnsund to Oldebroek | 256.88 mi (413.40 km) |
| Fehmarnsund to Oldenzaal | 228.24 mi (367.31 km) |
| Fehmarnsund to Ommen | 236.48 mi (380.57 km) |
| Fehmarnsund to Oosterend | 231.13 mi (371.97 km) |
| Fehmarnsund to Oosterhout | 325.78 mi (524.29 km) |
| Fehmarnsund to Oosterwolde | 223.32 mi (359.39 km) |
| Fehmarnsund to Oostzaan | 293.58 mi (472.48 km) |
| Fehmarnsund to Opmeer | 282.13 mi (454.04 km) |
| Fehmarnsund to Oss | 298.59 mi (480.53 km) |
| Fehmarnsund to Oud-Beijerland | 334.08 mi (537.65 km) |
| Fehmarnsund to Oudenbosch | 339.27 mi (546.01 km) |
| Fehmarnsund to Oudewater | 309.87 mi (498.68 km) |
