| Palo del Colle to Oberkirch | 666.84 mi (1,073.18 km) |
| Palo del Colle to Obernburg am Main | 708.47 mi (1,140.17 km) |
| Palo del Colle to Obernkirchen | 853.21 mi (1,373.11 km) |
| Palo del Colle to Oberschleissheim | 557.49 mi (897.19 km) |
| Palo del Colle to Oberstdorf | 541.93 mi (872.15 km) |
| Palo del Colle to Obertraubling | 589.78 mi (949.16 km) |
| Palo del Colle to Obertshausen | 729.12 mi (1,173.40 km) |
| Palo del Colle to Oberursel | 743.33 mi (1,196.27 km) |
| Palo del Colle to Ochsenfurt | 675.25 mi (1,086.72 km) |
| Palo del Colle to Ochsenhausen | 587.61 mi (945.67 km) |
| Palo del Colle to Ochtrup | 891.43 mi (1,434.61 km) |
| Palo del Colle to Odenthal | 827.36 mi (1,331.51 km) |
| Palo del Colle to Oelde | 847.67 mi (1,364.19 km) |
| Palo del Colle to Oelsnitz | 682.77 mi (1,098.82 km) |
| Palo del Colle to Oer-Erkenschwick | 857.90 mi (1,380.65 km) |
