| Cheat Lake to Oerlinghausen | 4,076.67 mi (6,560.77 km) |
| Cheat Lake to Oestrich-Winkel | 4,111.26 mi (6,616.44 km) |
| Cheat Lake to Offenburg | 4,156.95 mi (6,689.96 km) |
| Cheat Lake to Oftersheim | 4,154.35 mi (6,685.78 km) |
| Cheat Lake to Ohrdruf | 4,191.78 mi (6,746.01 km) |
| Cheat Lake to Ohringen | 4,196.34 mi (6,753.36 km) |
| Cheat Lake to Olbernhau | 4,296.75 mi (6,914.94 km) |
| Cheat Lake to Olching | 4,302.23 mi (6,923.78 km) |
| Cheat Lake to Oldenburg | 4,024.29 mi (6,476.47 km) |
| Cheat Lake to Oldenburg in Holstein | 4,087.88 mi (6,578.80 km) |
| Cheat Lake to Olfen | 4,034.87 mi (6,493.50 km) |
| Cheat Lake to Olpe | 4,073.40 mi (6,555.51 km) |
| Cheat Lake to Olsberg | 4,088.47 mi (6,579.75 km) |
| Cheat Lake to Oranienburg | 4,222.89 mi (6,796.09 km) |
| Cheat Lake to Ortenberg | 4,141.70 mi (6,665.43 km) |
