| Terni to Oberkirch | 467.63 mi (752.57 km) |
| Terni to Obernburg am Main | 529.84 mi (852.69 km) |
| Terni to Obernkirchen | 690.24 mi (1,110.84 km) |
| Terni to Oberschleissheim | 396.44 mi (638.01 km) |
| Terni to Oberstdorf | 354.24 mi (570.09 km) |
| Terni to Obertraubling | 443.05 mi (713.03 km) |
| Terni to Obertshausen | 549.27 mi (883.96 km) |
| Terni to Oberursel | 562.17 mi (904.72 km) |
| Terni to Ochsenfurt | 504.95 mi (812.64 km) |
| Terni to Ochsenhausen | 402.52 mi (647.79 km) |
| Terni to Ochtrup | 712.94 mi (1,147.36 km) |
| Terni to Odenthal | 640.55 mi (1,030.87 km) |
| Terni to Oelde | 674.07 mi (1,084.81 km) |
| Terni to Oelsnitz | 543.18 mi (874.16 km) |
| Terni to Oer-Erkenschwick | 676.21 mi (1,088.26 km) |
