| Sterling Heights to Oerlinghausen | 4,055.80 mi (6,527.18 km) |
| Sterling Heights to Oestrich-Winkel | 4,100.57 mi (6,599.24 km) |
| Sterling Heights to Offenburg | 4,153.39 mi (6,684.24 km) |
| Sterling Heights to Oftersheim | 4,145.57 mi (6,671.66 km) |
| Sterling Heights to Ohrdruf | 4,172.82 mi (6,715.50 km) |
| Sterling Heights to Ohringen | 4,186.78 mi (6,737.98 km) |
| Sterling Heights to Olbernhau | 4,274.12 mi (6,878.54 km) |
| Sterling Heights to Olching | 4,293.92 mi (6,910.39 km) |
| Sterling Heights to Oldenburg | 3,998.58 mi (6,435.09 km) |
| Sterling Heights to Oldenburg in Holstein | 4,052.84 mi (6,522.42 km) |
| Sterling Heights to Olfen | 4,017.15 mi (6,464.98 km) |
| Sterling Heights to Olpe | 4,058.27 mi (6,531.15 km) |
| Sterling Heights to Olsberg | 4,070.75 mi (6,551.24 km) |
| Sterling Heights to Oranienburg | 4,191.25 mi (6,745.17 km) |
| Sterling Heights to Ortenberg | 4,127.65 mi (6,642.81 km) |
