| Castagneto Carducci to Oegstgeest | 684.62 mi (1,101.80 km) |
| Castagneto Carducci to Oirschot | 626.57 mi (1,008.37 km) |
| Castagneto Carducci to Oisterwijk | 633.62 mi (1,019.71 km) |
| Castagneto Carducci to Oldebroek | 677.11 mi (1,089.70 km) |
| Castagneto Carducci to Oldenzaal | 654.53 mi (1,053.37 km) |
| Castagneto Carducci to Ommen | 674.23 mi (1,085.06 km) |
| Castagneto Carducci to Oosterend | 710.78 mi (1,143.89 km) |
| Castagneto Carducci to Oosterhout | 643.81 mi (1,036.12 km) |
| Castagneto Carducci to Oosterwolde | 706.95 mi (1,137.73 km) |
| Castagneto Carducci to Oostzaan | 692.52 mi (1,114.50 km) |
| Castagneto Carducci to Opmeer | 708.17 mi (1,139.69 km) |
| Castagneto Carducci to Oss | 639.49 mi (1,029.16 km) |
| Castagneto Carducci to Oud-Beijerland | 663.48 mi (1,067.77 km) |
| Castagneto Carducci to Oudenbosch | 647.12 mi (1,041.44 km) |
| Castagneto Carducci to Oudewater | 666.78 mi (1,073.07 km) |
