| Rocca Priora to Oberkirch | 518.96 mi (835.18 km) |
| Rocca Priora to Obernburg am Main | 583.22 mi (938.60 km) |
| Rocca Priora to Obernkirchen | 744.17 mi (1,197.63 km) |
| Rocca Priora to Oberschleissheim | 450.62 mi (725.20 km) |
| Rocca Priora to Oberstdorf | 407.50 mi (655.80 km) |
| Rocca Priora to Obertraubling | 497.11 mi (800.02 km) |
| Rocca Priora to Obertshausen | 602.52 mi (969.66 km) |
| Rocca Priora to Oberursel | 615.29 mi (990.22 km) |
| Rocca Priora to Ochsenfurt | 558.82 mi (899.34 km) |
| Rocca Priora to Ochsenhausen | 455.79 mi (733.52 km) |
| Rocca Priora to Ochtrup | 765.99 mi (1,232.74 km) |
| Rocca Priora to Odenthal | 692.97 mi (1,115.23 km) |
| Rocca Priora to Oelde | 727.52 mi (1,170.83 km) |
| Rocca Priora to Oelsnitz | 597.20 mi (961.10 km) |
| Rocca Priora to Oer-Erkenschwick | 729.06 mi (1,173.31 km) |
