| Guillena to Nuth | 1,094.28 mi (1,761.07 km) |
| Guillena to Oegstgeest | 1,133.03 mi (1,823.43 km) |
| Guillena to Oirschot | 1,112.36 mi (1,790.17 km) |
| Guillena to Oisterwijk | 1,114.73 mi (1,793.98 km) |
| Guillena to Oldebroek | 1,181.03 mi (1,900.69 km) |
| Guillena to Oldenzaal | 1,198.72 mi (1,929.15 km) |
| Guillena to Ommen | 1,197.15 mi (1,926.63 km) |
| Guillena to Oosterend | 1,216.73 mi (1,958.13 km) |
| Guillena to Oosterhout | 1,110.09 mi (1,786.52 km) |
| Guillena to Oosterwolde | 1,221.15 mi (1,965.25 km) |
| Guillena to Oostzaan | 1,156.92 mi (1,861.88 km) |
| Guillena to Opmeer | 1,174.11 mi (1,889.55 km) |
| Guillena to Oss | 1,132.82 mi (1,823.10 km) |
| Guillena to Oud-Beijerland | 1,109.87 mi (1,786.16 km) |
| Guillena to Oudenbosch | 1,099.28 mi (1,769.12 km) |
