| Carolina Forest to Oerlinghausen | 4,328.81 mi (6,966.55 km) |
| Carolina Forest to Oestrich-Winkel | 4,350.45 mi (7,001.38 km) |
| Carolina Forest to Offenburg | 4,386.65 mi (7,059.64 km) |
| Carolina Forest to Oftersheim | 4,390.76 mi (7,066.25 km) |
| Carolina Forest to Ohrdruf | 4,440.66 mi (7,146.54 km) |
| Carolina Forest to Ohringen | 4,433.40 mi (7,134.87 km) |
| Carolina Forest to Olbernhau | 4,549.33 mi (7,321.43 km) |
| Carolina Forest to Olching | 4,536.86 mi (7,301.37 km) |
| Carolina Forest to Oldenburg | 4,282.74 mi (6,892.40 km) |
| Carolina Forest to Oldenburg in Holstein | 4,356.96 mi (7,011.85 km) |
| Carolina Forest to Olfen | 4,283.47 mi (6,893.58 km) |
| Carolina Forest to Olpe | 4,318.48 mi (6,949.93 km) |
| Carolina Forest to Olsberg | 4,336.63 mi (6,979.13 km) |
| Carolina Forest to Oranienburg | 4,486.95 mi (7,221.05 km) |
| Carolina Forest to Ortenberg | 4,384.88 mi (7,056.78 km) |
