| Roura to Oegstgeest | 4,590.34 mi (7,387.44 km) |
| Roura to Oirschot | 4,603.62 mi (7,408.80 km) |
| Roura to Oisterwijk | 4,601.98 mi (7,406.17 km) |
| Roura to Oldebroek | 4,653.15 mi (7,488.52 km) |
| Roura to Oldenzaal | 4,689.72 mi (7,547.38 km) |
| Roura to Ommen | 4,674.95 mi (7,523.61 km) |
| Roura to Oosterend | 4,674.72 mi (7,523.23 km) |
| Roura to Oosterhout | 4,590.18 mi (7,387.18 km) |
| Roura to Oosterwolde | 4,682.95 mi (7,536.48 km) |
| Roura to Oostzaan | 4,613.50 mi (7,424.72 km) |
| Roura to Opmeer | 4,623.63 mi (7,441.02 km) |
| Roura to Oss | 4,619.48 mi (7,434.33 km) |
| Roura to Oud-Beijerland | 4,577.26 mi (7,366.39 km) |
| Roura to Oudenbosch | 4,575.62 mi (7,363.74 km) |
| Roura to Oudewater | 4,601.07 mi (7,404.71 km) |
