| Carthage to Oerlinghausen | 4,738.04 mi (7,625.14 km) |
| Carthage to Oestrich-Winkel | 4,788.99 mi (7,707.13 km) |
| Carthage to Offenburg | 4,845.54 mi (7,798.14 km) |
| Carthage to Oftersheim | 4,834.95 mi (7,781.10 km) |
| Carthage to Ohrdruf | 4,855.94 mi (7,814.88 km) |
| Carthage to Ohringen | 4,875.62 mi (7,846.55 km) |
| Carthage to Olbernhau | 4,954.46 mi (7,973.43 km) |
| Carthage to Olching | 4,983.19 mi (8,019.66 km) |
| Carthage to Oldenburg | 4,677.68 mi (7,527.99 km) |
| Carthage to Oldenburg in Holstein | 4,724.68 mi (7,603.64 km) |
| Carthage to Olfen | 4,701.56 mi (7,566.43 km) |
| Carthage to Olpe | 4,744.16 mi (7,634.99 km) |
| Carthage to Olsberg | 4,755.00 mi (7,652.43 km) |
| Carthage to Oranienburg | 4,865.22 mi (7,829.81 km) |
| Carthage to Ortenberg | 4,814.00 mi (7,747.39 km) |
