| Silver Firs to Oerlinghausen | 4,954.38 mi (7,973.30 km) |
| Silver Firs to Oestrich-Winkel | 5,053.64 mi (8,133.04 km) |
| Silver Firs to Offenburg | 5,141.58 mi (8,274.57 km) |
| Silver Firs to Oftersheim | 5,104.36 mi (8,214.68 km) |
| Silver Firs to Ohrdruf | 5,068.04 mi (8,156.23 km) |
| Silver Firs to Ohringen | 5,136.05 mi (8,265.67 km) |
| Silver Firs to Olbernhau | 5,134.64 mi (8,263.40 km) |
| Silver Firs to Olching | 5,237.79 mi (8,429.40 km) |
| Silver Firs to Oldenburg | 4,875.60 mi (7,846.51 km) |
| Silver Firs to Oldenburg in Holstein | 4,865.92 mi (7,830.95 km) |
| Silver Firs to Olfen | 4,939.32 mi (7,949.06 km) |
| Silver Firs to Olpe | 4,990.47 mi (8,031.39 km) |
| Silver Firs to Olsberg | 4,986.18 mi (8,024.48 km) |
| Silver Firs to Oranienburg | 5,006.98 mi (8,057.95 km) |
| Silver Firs to Ortenberg | 5,057.63 mi (8,139.48 km) |
