| Caledonia to Oerlinghausen | 4,220.00 mi (6,791.43 km) |
| Caledonia to Oestrich-Winkel | 4,271.62 mi (6,874.51 km) |
| Caledonia to Offenburg | 4,329.03 mi (6,966.89 km) |
| Caledonia to Oftersheim | 4,317.76 mi (6,948.76 km) |
| Caledonia to Ohrdruf | 4,337.94 mi (6,981.24 km) |
| Caledonia to Ohringen | 4,358.31 mi (7,014.02 km) |
| Caledonia to Olbernhau | 4,436.34 mi (7,139.60 km) |
| Caledonia to Olching | 4,465.94 mi (7,187.24 km) |
| Caledonia to Oldenburg | 4,159.55 mi (6,694.15 km) |
| Caledonia to Oldenburg in Holstein | 4,206.84 mi (6,770.25 km) |
| Caledonia to Olfen | 4,183.68 mi (6,732.98 km) |
| Caledonia to Olpe | 4,226.43 mi (6,801.78 km) |
| Caledonia to Olsberg | 4,237.09 mi (6,818.95 km) |
| Caledonia to Oranienburg | 4,347.25 mi (6,996.22 km) |
| Caledonia to Ortenberg | 4,296.32 mi (6,914.26 km) |
