| Battle Creek to Oberkirch | 4,254.47 mi (6,846.91 km) |
| Battle Creek to Obernburg am Main | 4,245.55 mi (6,832.55 km) |
| Battle Creek to Obernkirchen | 4,155.04 mi (6,686.89 km) |
| Battle Creek to Oberschleissheim | 4,397.99 mi (7,077.89 km) |
| Battle Creek to Oberstdorf | 4,382.05 mi (7,052.23 km) |
| Battle Creek to Obertraubling | 4,392.11 mi (7,068.41 km) |
| Battle Creek to Obertshausen | 4,225.56 mi (6,800.38 km) |
| Battle Creek to Oberursel | 4,210.91 mi (6,776.80 km) |
| Battle Creek to Ochsenfurt | 4,287.31 mi (6,899.75 km) |
| Battle Creek to Ochsenhausen | 4,343.51 mi (6,990.21 km) |
| Battle Creek to Ochtrup | 4,087.43 mi (6,578.08 km) |
| Battle Creek to Odenthal | 4,126.29 mi (6,640.63 km) |
| Battle Creek to Oelde | 4,135.66 mi (6,655.69 km) |
| Battle Creek to Oelsnitz | 4,335.03 mi (6,976.55 km) |
| Battle Creek to Oer-Erkenschwick | 4,109.56 mi (6,613.69 km) |
