| Samokov to Oegstgeest | 1,118.53 mi (1,800.10 km) |
| Samokov to Oirschot | 1,064.27 mi (1,712.78 km) |
| Samokov to Oisterwijk | 1,070.84 mi (1,723.35 km) |
| Samokov to Oldebroek | 1,076.66 mi (1,732.71 km) |
| Samokov to Oldenzaal | 1,035.46 mi (1,666.42 km) |
| Samokov to Ommen | 1,061.22 mi (1,707.87 km) |
| Samokov to Oosterend | 1,092.53 mi (1,758.26 km) |
| Samokov to Oosterhout | 1,085.71 mi (1,747.28 km) |
| Samokov to Oosterwolde | 1,084.39 mi (1,745.15 km) |
| Samokov to Oostzaan | 1,112.19 mi (1,789.90 km) |
| Samokov to Opmeer | 1,119.54 mi (1,801.72 km) |
| Samokov to Oss | 1,065.42 mi (1,714.63 km) |
| Samokov to Oud-Beijerland | 1,108.62 mi (1,784.15 km) |
| Samokov to Oudenbosch | 1,096.47 mi (1,764.60 km) |
| Samokov to Oudewater | 1,098.07 mi (1,767.17 km) |
