| San Martino Buon Albergo to Oerlinghausen | 465.90 mi (749.79 km) |
| San Martino Buon Albergo to Oestrich-Winkel | 347.85 mi (559.82 km) |
| San Martino Buon Albergo to Offenburg | 258.26 mi (415.63 km) |
| San Martino Buon Albergo to Oftersheim | 297.40 mi (478.62 km) |
| San Martino Buon Albergo to Ohrdruf | 374.27 mi (602.34 km) |
| San Martino Buon Albergo to Ohringen | 271.92 mi (437.61 km) |
| San Martino Buon Albergo to Olbernhau | 377.08 mi (606.85 km) |
| San Martino Buon Albergo to Olching | 192.58 mi (309.93 km) |
| San Martino Buon Albergo to Oldenburg | 549.40 mi (884.17 km) |
| San Martino Buon Albergo to Oldenburg in Holstein | 613.85 mi (987.90 km) |
| San Martino Buon Albergo to Olfen | 467.13 mi (751.77 km) |
| San Martino Buon Albergo to Olpe | 415.02 mi (667.90 km) |
| San Martino Buon Albergo to Olsberg | 427.10 mi (687.35 km) |
| San Martino Buon Albergo to Oranienburg | 516.06 mi (830.52 km) |
| San Martino Buon Albergo to Ortenberg | 354.13 mi (569.91 km) |
