| Sfantu-Gheorghe to Nuth | 973.96 mi (1,567.44 km) |
| Sfantu-Gheorghe to Oegstgeest | 1,054.97 mi (1,697.81 km) |
| Sfantu-Gheorghe to Oirschot | 1,008.19 mi (1,622.52 km) |
| Sfantu-Gheorghe to Oisterwijk | 1,013.81 mi (1,631.57 km) |
| Sfantu-Gheorghe to Oldebroek | 1,002.77 mi (1,613.80 km) |
| Sfantu-Gheorghe to Oldenzaal | 958.63 mi (1,542.77 km) |
| Sfantu-Gheorghe to Ommen | 983.83 mi (1,583.32 km) |
| Sfantu-Gheorghe to Oosterend | 1,009.43 mi (1,624.52 km) |
| Sfantu-Gheorghe to Oosterhout | 1,029.10 mi (1,656.17 km) |
| Sfantu-Gheorghe to Oosterwolde | 1,000.39 mi (1,609.97 km) |
| Sfantu-Gheorghe to Oostzaan | 1,043.08 mi (1,678.67 km) |
| Sfantu-Gheorghe to Opmeer | 1,046.10 mi (1,683.53 km) |
| Sfantu-Gheorghe to Oss | 1,004.09 mi (1,615.92 km) |
| Sfantu-Gheorghe to Oud-Beijerland | 1,051.04 mi (1,691.48 km) |
| Sfantu-Gheorghe to Oudenbosch | 1,042.03 mi (1,676.98 km) |
