| Guidel to Obernburg am Main | 591.03 mi (951.17 km) |
| Guidel to Obernkirchen | 638.08 mi (1,026.89 km) |
| Guidel to Oberschleissheim | 695.38 mi (1,119.10 km) |
| Guidel to Oberstdorf | 641.13 mi (1,031.80 km) |
| Guidel to Obertraubling | 721.74 mi (1,161.53 km) |
| Guidel to Obertshausen | 580.26 mi (933.84 km) |
| Guidel to Oberursel | 571.05 mi (919.02 km) |
| Guidel to Ochsenfurt | 630.18 mi (1,014.18 km) |
| Guidel to Ochsenhausen | 621.55 mi (1,000.29 km) |
| Guidel to Ochtrup | 563.06 mi (906.16 km) |
| Guidel to Odenthal | 526.12 mi (846.70 km) |
| Guidel to Oelde | 588.37 mi (946.88 km) |
| Guidel to Oelsnitz | 729.52 mi (1,174.05 km) |
| Guidel to Oer-Erkenschwick | 547.87 mi (881.71 km) |
| Guidel to Oerlinghausen | 612.24 mi (985.31 km) |
