| Silopi to Oerlinghausen | 1,923.36 mi (3,095.35 km) |
| Silopi to Oestrich-Winkel | 1,913.00 mi (3,078.67 km) |
| Silopi to Offenburg | 1,892.65 mi (3,045.93 km) |
| Silopi to Oftersheim | 1,877.19 mi (3,021.04 km) |
| Silopi to Ohrdruf | 1,813.82 mi (2,919.06 km) |
| Silopi to Ohringen | 1,834.31 mi (2,952.04 km) |
| Silopi to Olbernhau | 1,703.30 mi (2,741.19 km) |
| Silopi to Olching | 1,737.01 mi (2,795.45 km) |
| Silopi to Oldenburg | 1,968.16 mi (3,167.44 km) |
| Silopi to Oldenburg in Holstein | 1,898.24 mi (3,054.93 km) |
| Silopi to Olfen | 1,970.40 mi (3,171.05 km) |
| Silopi to Olpe | 1,938.25 mi (3,119.32 km) |
| Silopi to Olsberg | 1,917.80 mi (3,086.40 km) |
| Silopi to Oranienburg | 1,765.02 mi (2,840.53 km) |
| Silopi to Ortenberg | 1,874.29 mi (3,016.39 km) |
