| Federal Heights to Oerlinghausen | 4,950.11 mi (7,966.43 km) |
| Federal Heights to Oestrich-Winkel | 5,019.99 mi (8,078.89 km) |
| Federal Heights to Offenburg | 5,089.22 mi (8,190.30 km) |
| Federal Heights to Oftersheim | 5,068.64 mi (8,157.19 km) |
| Federal Heights to Ohrdruf | 5,068.89 mi (8,157.59 km) |
| Federal Heights to Ohringen | 5,106.82 mi (8,218.64 km) |
| Federal Heights to Olbernhau | 5,157.57 mi (8,300.31 km) |
| Federal Heights to Olching | 5,214.40 mi (8,391.77 km) |
| Federal Heights to Oldenburg | 4,881.61 mi (7,856.20 km) |
| Federal Heights to Oldenburg in Holstein | 4,908.44 mi (7,899.36 km) |
| Federal Heights to Olfen | 4,920.81 mi (7,919.27 km) |
| Federal Heights to Olpe | 4,967.47 mi (7,994.37 km) |
| Federal Heights to Olsberg | 4,972.93 mi (8,003.15 km) |
| Federal Heights to Oranienburg | 5,052.15 mi (8,130.66 km) |
| Federal Heights to Ortenberg | 5,037.76 mi (8,107.49 km) |
