| Grottaglie to Oberkirch | 718.35 mi (1,156.07 km) |
| Grottaglie to Obernburg am Main | 758.25 mi (1,220.28 km) |
| Grottaglie to Obernkirchen | 900.93 mi (1,449.91 km) |
| Grottaglie to Oberschleissheim | 606.33 mi (975.80 km) |
| Grottaglie to Oberstdorf | 592.98 mi (954.31 km) |
| Grottaglie to Obertraubling | 636.98 mi (1,025.11 km) |
| Grottaglie to Obertshausen | 778.95 mi (1,253.60 km) |
| Grottaglie to Oberursel | 793.24 mi (1,276.60 km) |
| Grottaglie to Ochsenfurt | 724.37 mi (1,165.76 km) |
| Grottaglie to Ochsenhausen | 638.32 mi (1,027.28 km) |
| Grottaglie to Ochtrup | 940.74 mi (1,513.97 km) |
| Grottaglie to Odenthal | 877.61 mi (1,412.37 km) |
| Grottaglie to Oelde | 896.57 mi (1,442.89 km) |
| Grottaglie to Oelsnitz | 728.52 mi (1,172.44 km) |
| Grottaglie to Oer-Erkenschwick | 907.60 mi (1,460.64 km) |
