| San Giuliano Terme to Oerlinghausen | 572.75 mi (921.75 km) |
| San Giuliano Terme to Oestrich-Winkel | 446.06 mi (717.86 km) |
| San Giuliano Terme to Offenburg | 346.47 mi (557.58 km) |
| San Giuliano Terme to Oftersheim | 397.36 mi (639.49 km) |
| San Giuliano Terme to Ohrdruf | 488.38 mi (785.96 km) |
| San Giuliano Terme to Ohringen | 378.35 mi (608.89 km) |
| San Giuliano Terme to Olbernhau | 495.86 mi (798.01 km) |
| San Giuliano Terme to Olching | 309.46 mi (498.03 km) |
| San Giuliano Terme to Oldenburg | 656.09 mi (1,055.88 km) |
| San Giuliano Terme to Oldenburg in Holstein | 728.34 mi (1,172.15 km) |
| San Giuliano Terme to Olfen | 567.52 mi (913.33 km) |
| San Giuliano Terme to Olpe | 515.76 mi (830.04 km) |
| San Giuliano Terme to Olsberg | 532.08 mi (856.31 km) |
| San Giuliano Terme to Oranienburg | 634.32 mi (1,020.84 km) |
| San Giuliano Terme to Ortenberg | 460.18 mi (740.59 km) |
