| Honefoss to Oerlinghausen | 570.01 mi (917.34 km) |
| Honefoss to Oestrich-Winkel | 708.21 mi (1,139.75 km) |
| Honefoss to Offenburg | 813.87 mi (1,309.79 km) |
| Honefoss to Oftersheim | 749.00 mi (1,205.40 km) |
| Honefoss to Ohrdruf | 645.45 mi (1,038.76 km) |
| Honefoss to Ohringen | 758.38 mi (1,220.50 km) |
| Honefoss to Olbernhau | 666.90 mi (1,073.27 km) |
| Honefoss to Olching | 827.81 mi (1,332.24 km) |
| Honefoss to Oldenburg | 491.59 mi (791.14 km) |
| Honefoss to Oldenburg in Holstein | 405.93 mi (653.28 km) |
| Honefoss to Olfen | 594.50 mi (956.75 km) |
| Honefoss to Olpe | 639.38 mi (1,028.99 km) |
| Honefoss to Olsberg | 613.20 mi (986.84 km) |
| Honefoss to Oranienburg | 524.14 mi (843.51 km) |
| Honefoss to Ortenberg | 679.61 mi (1,093.72 km) |
