| Battle Creek to Oerlinghausen | 4,149.62 mi (6,678.18 km) |
| Battle Creek to Oestrich-Winkel | 4,196.80 mi (6,754.09 km) |
| Battle Creek to Offenburg | 4,251.20 mi (6,841.64 km) |
| Battle Creek to Oftersheim | 4,242.20 mi (6,827.16 km) |
| Battle Creek to Ohrdruf | 4,267.00 mi (6,867.08 km) |
| Battle Creek to Ohringen | 4,283.20 mi (6,893.14 km) |
| Battle Creek to Olbernhau | 4,367.32 mi (7,028.52 km) |
| Battle Creek to Olching | 4,390.53 mi (7,065.88 km) |
| Battle Creek to Oldenburg | 4,091.24 mi (6,584.21 km) |
| Battle Creek to Oldenburg in Holstein | 4,143.02 mi (6,667.54 km) |
| Battle Creek to Olfen | 4,111.78 mi (6,617.27 km) |
| Battle Creek to Olpe | 4,153.48 mi (6,684.38 km) |
| Battle Creek to Olsberg | 4,165.33 mi (6,703.46 km) |
| Battle Creek to Oranienburg | 4,282.20 mi (6,891.53 km) |
| Battle Creek to Ortenberg | 4,223.06 mi (6,796.36 km) |
