| Caledonia to Oberkirch | 4,332.04 mi (6,971.75 km) |
| Caledonia to Obernburg am Main | 4,319.74 mi (6,951.95 km) |
| Caledonia to Obernkirchen | 4,224.44 mi (6,798.58 km) |
| Caledonia to Oberschleissheim | 4,473.09 mi (7,198.74 km) |
| Caledonia to Oberstdorf | 4,459.82 mi (7,177.39 km) |
| Caledonia to Obertraubling | 4,465.35 mi (7,186.29 km) |
| Caledonia to Obertshausen | 4,299.56 mi (6,919.48 km) |
| Caledonia to Oberursel | 4,284.86 mi (6,895.82 km) |
| Caledonia to Ochsenfurt | 4,361.08 mi (7,018.48 km) |
| Caledonia to Ochsenhausen | 4,420.36 mi (7,113.88 km) |
| Caledonia to Ochtrup | 4,158.48 mi (6,692.42 km) |
| Caledonia to Odenthal | 4,199.78 mi (6,758.90 km) |
| Caledonia to Oelde | 4,206.71 mi (6,770.04 km) |
| Caledonia to Oelsnitz | 4,405.54 mi (7,090.03 km) |
| Caledonia to Oer-Erkenschwick | 4,181.71 mi (6,729.81 km) |
