| Borgosesia to Oerlinghausen | 432.21 mi (695.58 km) |
| Borgosesia to Oestrich-Winkel | 296.20 mi (476.70 km) |
| Borgosesia to Offenburg | 190.65 mi (306.83 km) |
| Borgosesia to Oftersheim | 252.89 mi (406.99 km) |
| Borgosesia to Ohrdruf | 370.87 mi (596.86 km) |
| Borgosesia to Ohringen | 247.46 mi (398.25 km) |
| Borgosesia to Olbernhau | 413.83 mi (665.99 km) |
| Borgosesia to Olching | 223.85 mi (360.26 km) |
| Borgosesia to Oldenburg | 513.18 mi (825.88 km) |
| Borgosesia to Oldenburg in Holstein | 604.21 mi (972.39 km) |
| Borgosesia to Olfen | 416.50 mi (670.30 km) |
| Borgosesia to Olpe | 366.73 mi (590.20 km) |
| Borgosesia to Olsberg | 389.35 mi (626.60 km) |
| Borgosesia to Oranienburg | 535.15 mi (861.24 km) |
| Borgosesia to Ortenberg | 322.59 mi (519.16 km) |
