| Carteret to Oerlinghausen | 3,815.94 mi (6,141.17 km) |
| Carteret to Oestrich-Winkel | 3,844.40 mi (6,186.97 km) |
| Carteret to Offenburg | 3,886.00 mi (6,253.92 km) |
| Carteret to Oftersheim | 3,886.30 mi (6,254.39 km) |
| Carteret to Ohrdruf | 3,929.56 mi (6,324.02 km) |
| Carteret to Ohringen | 3,928.62 mi (6,322.51 km) |
| Carteret to Olbernhau | 4,036.47 mi (6,496.08 km) |
| Carteret to Olching | 4,033.56 mi (6,491.39 km) |
| Carteret to Oldenburg | 3,766.74 mi (6,061.98 km) |
| Carteret to Oldenburg in Holstein | 3,836.22 mi (6,173.81 km) |
| Carteret to Olfen | 3,772.35 mi (6,071.01 km) |
| Carteret to Olpe | 3,809.23 mi (6,130.36 km) |
| Carteret to Olsberg | 3,825.79 mi (6,157.01 km) |
| Carteret to Oranienburg | 3,968.56 mi (6,386.78 km) |
| Carteret to Ortenberg | 3,876.71 mi (6,238.96 km) |
