| Horwich to Oerlinghausen | 481.09 mi (774.23 km) |
| Horwich to Oestrich-Winkel | 513.52 mi (826.44 km) |
| Horwich to Offenburg | 575.68 mi (926.47 km) |
| Horwich to Oftersheim | 559.62 mi (900.63 km) |
| Horwich to Ohrdruf | 592.46 mi (953.46 km) |
| Horwich to Ohringen | 600.11 mi (965.78 km) |
| Horwich to Olbernhau | 701.25 mi (1,128.55 km) |
| Horwich to Olching | 707.73 mi (1,138.98 km) |
| Horwich to Oldenburg | 444.00 mi (714.54 km) |
| Horwich to Oldenburg in Holstein | 547.20 mi (880.64 km) |
| Horwich to Olfen | 435.21 mi (700.41 km) |
| Horwich to Olpe | 472.45 mi (760.33 km) |
| Horwich to Olsberg | 488.54 mi (786.23 km) |
| Horwich to Oranienburg | 654.59 mi (1,053.46 km) |
| Horwich to Ortenberg | 540.99 mi (870.64 km) |
