| Tranent to Oerlinghausen | 545.58 mi (878.03 km) |
| Tranent to Oestrich-Winkel | 612.27 mi (985.36 km) |
| Tranent to Offenburg | 690.86 mi (1,111.83 km) |
| Tranent to Oftersheim | 661.91 mi (1,065.24 km) |
| Tranent to Ohrdruf | 663.90 mi (1,068.44 km) |
| Tranent to Ohringen | 698.62 mi (1,124.32 km) |
| Tranent to Olbernhau | 762.35 mi (1,226.88 km) |
| Tranent to Olching | 805.71 mi (1,296.67 km) |
| Tranent to Oldenburg | 486.93 mi (783.64 km) |
| Tranent to Oldenburg in Holstein | 557.38 mi (897.02 km) |
| Tranent to Olfen | 512.04 mi (824.05 km) |
| Tranent to Olpe | 558.14 mi (898.23 km) |
| Tranent to Olsberg | 564.77 mi (908.91 km) |
| Tranent to Oranienburg | 686.36 mi (1,104.60 km) |
| Tranent to Ortenberg | 628.44 mi (1,011.37 km) |
