| Cristuru Secuiesc to Nuth | 928.30 mi (1,493.96 km) |
| Cristuru Secuiesc to Oegstgeest | 1,008.75 mi (1,623.43 km) |
| Cristuru Secuiesc to Oirschot | 962.23 mi (1,548.55 km) |
| Cristuru Secuiesc to Oisterwijk | 967.81 mi (1,557.54 km) |
| Cristuru Secuiesc to Oldebroek | 956.36 mi (1,539.11 km) |
| Cristuru Secuiesc to Oldenzaal | 912.19 mi (1,468.03 km) |
| Cristuru Secuiesc to Ommen | 937.37 mi (1,508.55 km) |
| Cristuru Secuiesc to Oosterend | 962.88 mi (1,549.60 km) |
| Cristuru Secuiesc to Oosterhout | 983.09 mi (1,582.14 km) |
| Cristuru Secuiesc to Oosterwolde | 953.83 mi (1,535.04 km) |
| Cristuru Secuiesc to Oostzaan | 996.74 mi (1,604.09 km) |
| Cristuru Secuiesc to Opmeer | 999.67 mi (1,608.81 km) |
| Cristuru Secuiesc to Oss | 957.97 mi (1,541.71 km) |
| Cristuru Secuiesc to Oud-Beijerland | 1,004.99 mi (1,617.37 km) |
| Cristuru Secuiesc to Oudenbosch | 996.08 mi (1,603.04 km) |
