| Sighetu Marmatiei to Nuth | 832.99 mi (1,340.57 km) |
| Sighetu Marmatiei to Oegstgeest | 907.21 mi (1,460.01 km) |
| Sighetu Marmatiei to Oirschot | 863.80 mi (1,390.16 km) |
| Sighetu Marmatiei to Oisterwijk | 868.98 mi (1,398.49 km) |
| Sighetu Marmatiei to Oldebroek | 852.22 mi (1,371.52 km) |
| Sighetu Marmatiei to Oldenzaal | 807.74 mi (1,299.93 km) |
| Sighetu Marmatiei to Ommen | 832.39 mi (1,339.61 km) |
| Sighetu Marmatiei to Oosterend | 855.85 mi (1,377.36 km) |
| Sighetu Marmatiei to Oosterhout | 884.18 mi (1,422.95 km) |
| Sighetu Marmatiei to Oosterwolde | 846.64 mi (1,362.54 km) |
| Sighetu Marmatiei to Oostzaan | 893.58 mi (1,438.08 km) |
| Sighetu Marmatiei to Opmeer | 895.13 mi (1,440.57 km) |
| Sighetu Marmatiei to Oss | 857.86 mi (1,380.59 km) |
| Sighetu Marmatiei to Oud-Beijerland | 905.44 mi (1,457.17 km) |
| Sighetu Marmatiei to Oudenbosch | 897.71 mi (1,444.72 km) |
