| Rochester Hills to Oerlinghausen | 4,056.41 mi (6,528.16 km) |
| Rochester Hills to Oestrich-Winkel | 4,101.51 mi (6,600.75 km) |
| Rochester Hills to Offenburg | 4,154.56 mi (6,686.12 km) |
| Rochester Hills to Oftersheim | 4,146.57 mi (6,673.26 km) |
| Rochester Hills to Ohrdruf | 4,173.47 mi (6,716.55 km) |
| Rochester Hills to Ohringen | 4,187.75 mi (6,739.53 km) |
| Rochester Hills to Olbernhau | 4,274.65 mi (6,879.38 km) |
| Rochester Hills to Olching | 4,294.91 mi (6,911.99 km) |
| Rochester Hills to Oldenburg | 3,999.03 mi (6,435.81 km) |
| Rochester Hills to Oldenburg in Holstein | 4,052.97 mi (6,522.63 km) |
| Rochester Hills to Olfen | 4,017.86 mi (6,466.13 km) |
| Rochester Hills to Olpe | 4,059.06 mi (6,532.43 km) |
| Rochester Hills to Olsberg | 4,071.46 mi (6,552.38 km) |
| Rochester Hills to Oranienburg | 4,191.48 mi (6,745.54 km) |
| Rochester Hills to Ortenberg | 4,128.47 mi (6,644.13 km) |
