| Gengenbach to Nowy Sacz | 580.13 mi (933.63 km) |
| Gengenbach to Nowy Targ | 549.04 mi (883.60 km) |
| Gengenbach to Nowy Tomysl | 448.16 mi (721.24 km) |
| Gengenbach to Nysa | 442.06 mi (711.43 km) |
| Gengenbach to Oborniki | 484.87 mi (780.32 km) |
| Gengenbach to Oborniki Slaskie | 443.22 mi (713.29 km) |
| Gengenbach to Olawa | 450.13 mi (724.42 km) |
| Gengenbach to Olecko | 735.75 mi (1,184.08 km) |
| Gengenbach to Olesnica | 459.90 mi (740.14 km) |
| Gengenbach to Olesno | 495.26 mi (797.05 km) |
| Gengenbach to Olkusz | 535.28 mi (861.46 km) |
| Gengenbach to Olsztyn | 654.74 mi (1,053.70 km) |
| Gengenbach to Opalenica | 457.71 mi (736.61 km) |
| Gengenbach to Opoczno | 582.79 mi (937.91 km) |
| Gengenbach to Opole | 471.01 mi (758.02 km) |
