| Guichen to Oestrich-Winkel | 465.41 mi (749.01 km) |
| Guichen to Offenburg | 448.89 mi (722.42 km) |
| Guichen to Oftersheim | 483.03 mi (777.36 km) |
| Guichen to Ohrdruf | 596.10 mi (959.33 km) |
| Guichen to Ohringen | 522.72 mi (841.24 km) |
| Guichen to Olbernhau | 705.03 mi (1,134.64 km) |
| Guichen to Olching | 604.68 mi (973.14 km) |
| Guichen to Oldenburg | 565.64 mi (910.31 km) |
| Guichen to Oldenburg in Holstein | 700.79 mi (1,127.82 km) |
| Guichen to Olfen | 483.57 mi (778.23 km) |
| Guichen to Olpe | 480.24 mi (772.87 km) |
| Guichen to Olsberg | 515.08 mi (828.95 km) |
| Guichen to Oranienburg | 738.60 mi (1,188.66 km) |
| Guichen to Ortenberg | 516.70 mi (831.55 km) |
| Guichen to Oschatz | 704.01 mi (1,133.00 km) |
