| Kulp to Oerlinghausen | 1,806.28 mi (2,906.93 km) |
| Kulp to Oestrich-Winkel | 1,797.10 mi (2,892.15 km) |
| Kulp to Offenburg | 1,778.11 mi (2,861.59 km) |
| Kulp to Oftersheim | 1,761.72 mi (2,835.21 km) |
| Kulp to Ohrdruf | 1,697.06 mi (2,731.16 km) |
| Kulp to Ohringen | 1,718.86 mi (2,766.24 km) |
| Kulp to Olbernhau | 1,586.32 mi (2,552.93 km) |
| Kulp to Olching | 1,622.24 mi (2,610.74 km) |
| Kulp to Oldenburg | 1,850.75 mi (2,978.49 km) |
| Kulp to Oldenburg in Holstein | 1,780.68 mi (2,865.72 km) |
| Kulp to Olfen | 1,853.53 mi (2,982.97 km) |
| Kulp to Olpe | 1,821.71 mi (2,931.75 km) |
| Kulp to Olsberg | 1,801.01 mi (2,898.45 km) |
| Kulp to Oranienburg | 1,647.47 mi (2,651.35 km) |
| Kulp to Ortenberg | 1,758.02 mi (2,829.26 km) |
