| Isperih to Oestrich-Winkel | 986.36 mi (1,587.40 km) |
| Isperih to Offenburg | 960.21 mi (1,545.31 km) |
| Isperih to Oftersheim | 947.98 mi (1,525.63 km) |
| Isperih to Ohrdruf | 897.68 mi (1,444.67 km) |
| Isperih to Ohringen | 905.10 mi (1,456.62 km) |
| Isperih to Olbernhau | 793.19 mi (1,276.51 km) |
| Isperih to Olching | 805.28 mi (1,295.97 km) |
| Isperih to Oldenburg | 1,068.37 mi (1,719.37 km) |
| Isperih to Oldenburg in Holstein | 1,023.69 mi (1,647.47 km) |
| Isperih to Olfen | 1,054.78 mi (1,697.50 km) |
| Isperih to Olpe | 1,017.94 mi (1,638.21 km) |
| Isperih to Olsberg | 1,001.27 mi (1,611.38 km) |
| Isperih to Oranienburg | 881.23 mi (1,418.20 km) |
| Isperih to Ortenberg | 951.18 mi (1,530.77 km) |
| Isperih to Oschatz | 825.30 mi (1,328.20 km) |
