| Gambettola to Oerlinghausen | 568.02 mi (914.15 km) |
| Gambettola to Oestrich-Winkel | 454.61 mi (731.62 km) |
| Gambettola to Offenburg | 366.55 mi (589.91 km) |
| Gambettola to Oftersheim | 403.95 mi (650.09 km) |
| Gambettola to Ohrdruf | 469.67 mi (755.86 km) |
| Gambettola to Ohringen | 375.97 mi (605.07 km) |
| Gambettola to Olbernhau | 454.96 mi (732.19 km) |
| Gambettola to Olching | 286.29 mi (460.73 km) |
| Gambettola to Oldenburg | 651.19 mi (1,047.99 km) |
| Gambettola to Oldenburg in Holstein | 706.60 mi (1,137.16 km) |
| Gambettola to Olfen | 572.63 mi (921.56 km) |
| Gambettola to Olpe | 520.61 mi (837.85 km) |
| Gambettola to Olsberg | 530.64 mi (853.98 km) |
| Gambettola to Oranienburg | 598.23 mi (962.76 km) |
| Gambettola to Ortenberg | 457.57 mi (736.39 km) |
