| Boechout to Oestrich-Winkel | 173.54 mi (279.28 km) |
| Boechout to Offenburg | 240.85 mi (387.62 km) |
| Boechout to Oftersheim | 218.89 mi (352.27 km) |
| Boechout to Ohrdruf | 272.63 mi (438.75 km) |
| Boechout to Ohringen | 259.59 mi (417.78 km) |
| Boechout to Olbernhau | 386.78 mi (622.46 km) |
| Boechout to Olching | 367.05 mi (590.71 km) |
| Boechout to Oldenburg | 209.71 mi (337.49 km) |
| Boechout to Oldenburg in Holstein | 344.87 mi (555.01 km) |
| Boechout to Olfen | 130.90 mi (210.66 km) |
| Boechout to Olpe | 145.68 mi (234.45 km) |
| Boechout to Olsberg | 173.52 mi (279.25 km) |
| Boechout to Oranienburg | 388.61 mi (625.40 km) |
| Boechout to Ortenberg | 207.21 mi (333.48 km) |
| Boechout to Oschatz | 373.09 mi (600.43 km) |
