| Belen to Nuth | 1,793.00 mi (2,885.56 km) |
| Belen to Oegstgeest | 1,882.50 mi (3,029.59 km) |
| Belen to Oirschot | 1,831.59 mi (2,947.66 km) |
| Belen to Oisterwijk | 1,837.76 mi (2,957.58 km) |
| Belen to Oldebroek | 1,834.48 mi (2,952.31 km) |
| Belen to Oldenzaal | 1,791.17 mi (2,882.61 km) |
| Belen to Ommen | 1,816.78 mi (2,923.83 km) |
| Belen to Oosterend | 1,844.64 mi (2,968.67 km) |
| Belen to Oosterhout | 1,852.95 mi (2,982.03 km) |
| Belen to Oosterwolde | 1,835.84 mi (2,954.50 km) |
| Belen to Oostzaan | 1,873.06 mi (3,014.41 km) |
| Belen to Opmeer | 1,877.94 mi (3,022.25 km) |
| Belen to Oss | 1,830.14 mi (2,945.33 km) |
| Belen to Oud-Beijerland | 1,875.56 mi (3,018.43 km) |
| Belen to Oudenbosch | 1,864.83 mi (3,001.15 km) |
