| Senglea to Oegstgeest | 1,228.88 mi (1,977.69 km) |
| Senglea to Oirschot | 1,170.67 mi (1,884.01 km) |
| Senglea to Oisterwijk | 1,177.73 mi (1,895.38 km) |
| Senglea to Oldebroek | 1,219.35 mi (1,962.36 km) |
| Senglea to Oldenzaal | 1,194.26 mi (1,921.98 km) |
| Senglea to Ommen | 1,215.14 mi (1,955.58 km) |
| Senglea to Oosterend | 1,251.82 mi (2,014.61 km) |
| Senglea to Oosterhout | 1,188.10 mi (1,912.05 km) |
| Senglea to Oosterwolde | 1,247.43 mi (2,007.55 km) |
| Senglea to Oostzaan | 1,236.33 mi (1,989.69 km) |
| Senglea to Opmeer | 1,251.68 mi (2,014.39 km) |
| Senglea to Oss | 1,183.16 mi (1,904.12 km) |
| Senglea to Oud-Beijerland | 1,207.83 mi (1,943.82 km) |
| Senglea to Oudenbosch | 1,191.47 mi (1,917.49 km) |
| Senglea to Oudewater | 1,210.89 mi (1,948.73 km) |
