| Ruffano to Oberkirch | 774.57 mi (1,246.55 km) |
| Ruffano to Obernburg am Main | 812.58 mi (1,307.72 km) |
| Ruffano to Obernkirchen | 952.98 mi (1,533.68 km) |
| Ruffano to Oberschleissheim | 659.81 mi (1,061.87 km) |
| Ruffano to Oberstdorf | 648.75 mi (1,044.07 km) |
| Ruffano to Obertraubling | 688.74 mi (1,108.43 km) |
| Ruffano to Obertshausen | 833.33 mi (1,341.11 km) |
| Ruffano to Oberursel | 847.70 mi (1,364.24 km) |
| Ruffano to Ochsenfurt | 778.02 mi (1,252.10 km) |
| Ruffano to Ochsenhausen | 693.71 mi (1,116.42 km) |
| Ruffano to Ochtrup | 994.47 mi (1,600.45 km) |
| Ruffano to Odenthal | 932.39 mi (1,500.53 km) |
| Ruffano to Oelde | 949.89 mi (1,528.69 km) |
| Ruffano to Oelsnitz | 778.69 mi (1,253.18 km) |
| Ruffano to Oer-Erkenschwick | 961.77 mi (1,547.82 km) |
