| Sirvan to Oerlinghausen | 1,867.57 mi (3,005.56 km) |
| Sirvan to Oestrich-Winkel | 1,859.30 mi (2,992.25 km) |
| Sirvan to Offenburg | 1,840.74 mi (2,962.39 km) |
| Sirvan to Oftersheim | 1,824.09 mi (2,935.59 km) |
| Sirvan to Ohrdruf | 1,758.71 mi (2,830.38 km) |
| Sirvan to Ohringen | 1,781.25 mi (2,866.64 km) |
| Sirvan to Olbernhau | 1,647.75 mi (2,651.80 km) |
| Sirvan to Olching | 1,684.83 mi (2,711.47 km) |
| Sirvan to Oldenburg | 1,911.43 mi (3,076.15 km) |
| Sirvan to Oldenburg in Holstein | 1,840.17 mi (2,961.47 km) |
| Sirvan to Olfen | 1,915.06 mi (3,082.00 km) |
| Sirvan to Olpe | 1,883.52 mi (3,031.23 km) |
| Sirvan to Olsberg | 1,862.62 mi (2,997.60 km) |
| Sirvan to Oranienburg | 1,707.60 mi (2,748.12 km) |
| Sirvan to Ortenberg | 1,820.02 mi (2,929.04 km) |
