| San Giuliano Terme to Oegstgeest | 643.59 mi (1,035.76 km) |
| San Giuliano Terme to Oirschot | 585.40 mi (942.11 km) |
| San Giuliano Terme to Oisterwijk | 592.46 mi (953.47 km) |
| San Giuliano Terme to Oldebroek | 635.44 mi (1,022.65 km) |
| San Giuliano Terme to Oldenzaal | 612.66 mi (985.99 km) |
| San Giuliano Terme to Ommen | 632.42 mi (1,017.79 km) |
| San Giuliano Terme to Oosterend | 668.99 mi (1,076.64 km) |
| San Giuliano Terme to Oosterhout | 602.81 mi (970.13 km) |
| San Giuliano Terme to Oosterwolde | 665.13 mi (1,070.42 km) |
| San Giuliano Terme to Oostzaan | 651.21 mi (1,048.02 km) |
| San Giuliano Terme to Opmeer | 666.76 mi (1,073.04 km) |
| San Giuliano Terme to Oss | 598.12 mi (962.58 km) |
| San Giuliano Terme to Oud-Beijerland | 622.65 mi (1,002.05 km) |
| San Giuliano Terme to Oudenbosch | 606.33 mi (975.80 km) |
| San Giuliano Terme to Oudewater | 625.62 mi (1,006.83 km) |
