| Oak Creek to Oerlinghausen | 4,216.84 mi (6,786.35 km) |
| Oak Creek to Oestrich-Winkel | 4,268.65 mi (6,869.72 km) |
| Oak Creek to Offenburg | 4,326.18 mi (6,962.31 km) |
| Oak Creek to Oftersheim | 4,314.81 mi (6,944.02 km) |
| Oak Creek to Ohrdruf | 4,334.80 mi (6,976.19 km) |
| Oak Creek to Ohringen | 4,355.34 mi (7,009.25 km) |
| Oak Creek to Olbernhau | 4,433.12 mi (7,134.42 km) |
| Oak Creek to Olching | 4,462.98 mi (7,182.48 km) |
| Oak Creek to Oldenburg | 4,156.31 mi (6,688.93 km) |
| Oak Creek to Oldenburg in Holstein | 4,203.43 mi (6,764.76 km) |
| Oak Creek to Olfen | 4,180.58 mi (6,727.99 km) |
| Oak Creek to Olpe | 4,223.38 mi (6,796.87 km) |
| Oak Creek to Olsberg | 4,233.99 mi (6,813.95 km) |
| Oak Creek to Oranienburg | 4,343.88 mi (6,990.79 km) |
| Oak Creek to Ortenberg | 4,293.28 mi (6,909.36 km) |
