| Alum Rock to Oerlinghausen | 5,581.77 mi (8,982.98 km) |
| Alum Rock to Oestrich-Winkel | 5,671.18 mi (9,126.88 km) |
| Alum Rock to Offenburg | 5,752.81 mi (9,258.25 km) |
| Alum Rock to Oftersheim | 5,721.56 mi (9,207.96 km) |
| Alum Rock to Ohrdruf | 5,698.18 mi (9,170.33 km) |
| Alum Rock to Ohringen | 5,755.92 mi (9,263.25 km) |
| Alum Rock to Olbernhau | 5,772.91 mi (9,290.61 km) |
| Alum Rock to Olching | 5,860.63 mi (9,431.77 km) |
| Alum Rock to Oldenburg | 5,505.95 mi (8,860.97 km) |
| Alum Rock to Oldenburg in Holstein | 5,508.56 mi (8,865.18 km) |
| Alum Rock to Olfen | 5,561.46 mi (8,950.31 km) |
| Alum Rock to Olpe | 5,611.41 mi (9,030.69 km) |
| Alum Rock to Olsberg | 5,610.62 mi (9,029.42 km) |
| Alum Rock to Oranienburg | 5,651.62 mi (9,095.40 km) |
| Alum Rock to Ortenberg | 5,680.28 mi (9,141.52 km) |
