| Demir Hisar to Oegstgeest | 1,091.71 mi (1,756.93 km) |
| Demir Hisar to Oirschot | 1,034.83 mi (1,665.39 km) |
| Demir Hisar to Oisterwijk | 1,041.73 mi (1,676.49 km) |
| Demir Hisar to Oldebroek | 1,056.46 mi (1,700.20 km) |
| Demir Hisar to Oldenzaal | 1,017.98 mi (1,638.28 km) |
| Demir Hisar to Ommen | 1,043.34 mi (1,679.09 km) |
| Demir Hisar to Oosterend | 1,076.94 mi (1,733.16 km) |
| Demir Hisar to Oosterhout | 1,055.98 mi (1,699.44 km) |
| Demir Hisar to Oosterwolde | 1,069.50 mi (1,721.19 km) |
| Demir Hisar to Oostzaan | 1,088.51 mi (1,751.79 km) |
| Demir Hisar to Opmeer | 1,098.02 mi (1,767.09 km) |
| Demir Hisar to Oss | 1,038.75 mi (1,671.71 km) |
| Demir Hisar to Oud-Beijerland | 1,078.84 mi (1,736.22 km) |
| Demir Hisar to Oudenbosch | 1,065.32 mi (1,714.47 km) |
| Demir Hisar to Oudewater | 1,071.23 mi (1,723.98 km) |
