| San Pietro Vernotico to Oberkirch | 740.74 mi (1,192.10 km) |
| San Pietro Vernotico to Obernburg am Main | 777.45 mi (1,251.18 km) |
| San Pietro Vernotico to Obernkirchen | 917.15 mi (1,476.01 km) |
| San Pietro Vernotico to Oberschleissheim | 624.38 mi (1,004.85 km) |
| San Pietro Vernotico to Oberstdorf | 614.54 mi (989.01 km) |
| San Pietro Vernotico to Obertraubling | 652.89 mi (1,050.72 km) |
| San Pietro Vernotico to Obertshausen | 798.21 mi (1,284.59 km) |
| San Pietro Vernotico to Oberursel | 812.62 mi (1,307.78 km) |
| San Pietro Vernotico to Ochsenfurt | 742.62 mi (1,195.14 km) |
| San Pietro Vernotico to Ochsenhausen | 659.19 mi (1,060.86 km) |
| San Pietro Vernotico to Ochtrup | 959.08 mi (1,543.49 km) |
| San Pietro Vernotico to Odenthal | 897.45 mi (1,444.30 km) |
| San Pietro Vernotico to Oelde | 914.36 mi (1,471.52 km) |
| San Pietro Vernotico to Oelsnitz | 742.63 mi (1,195.15 km) |
| San Pietro Vernotico to Oer-Erkenschwick | 926.55 mi (1,491.14 km) |
