| Castel Goffredo to Oegstgeest | 548.43 mi (882.62 km) |
| Castel Goffredo to Oirschot | 489.58 mi (787.91 km) |
| Castel Goffredo to Oisterwijk | 496.73 mi (799.41 km) |
| Castel Goffredo to Oldebroek | 535.83 mi (862.34 km) |
| Castel Goffredo to Oldenzaal | 510.86 mi (822.14 km) |
| Castel Goffredo to Ommen | 531.50 mi (855.37 km) |
| Castel Goffredo to Oosterend | 568.18 mi (914.40 km) |
| Castel Goffredo to Oosterhout | 508.01 mi (817.56 km) |
| Castel Goffredo to Oosterwolde | 563.87 mi (907.46 km) |
| Castel Goffredo to Oostzaan | 554.25 mi (891.98 km) |
| Castel Goffredo to Opmeer | 569.05 mi (915.79 km) |
| Castel Goffredo to Oss | 500.93 mi (806.17 km) |
| Castel Goffredo to Oud-Beijerland | 528.76 mi (850.96 km) |
| Castel Goffredo to Oudenbosch | 512.78 mi (825.24 km) |
| Castel Goffredo to Oudewater | 529.73 mi (852.52 km) |
