| Demir Hisar to Oerlinghausen | 948.82 mi (1,526.98 km) |
| Demir Hisar to Oestrich-Winkel | 878.04 mi (1,413.07 km) |
| Demir Hisar to Offenburg | 818.58 mi (1,317.37 km) |
| Demir Hisar to Oftersheim | 830.58 mi (1,336.69 km) |
| Demir Hisar to Ohrdruf | 830.71 mi (1,336.90 km) |
| Demir Hisar to Ohringen | 791.06 mi (1,273.08 km) |
| Demir Hisar to Olbernhau | 753.28 mi (1,212.29 km) |
| Demir Hisar to Olching | 683.19 mi (1,099.49 km) |
| Demir Hisar to Oldenburg | 1,021.68 mi (1,644.23 km) |
| Demir Hisar to Oldenburg in Holstein | 1,020.50 mi (1,642.33 km) |
| Demir Hisar to Olfen | 975.75 mi (1,570.31 km) |
| Demir Hisar to Olpe | 928.92 mi (1,494.96 km) |
| Demir Hisar to Olsberg | 923.99 mi (1,487.02 km) |
| Demir Hisar to Oranienburg | 879.64 mi (1,415.65 km) |
| Demir Hisar to Ortenberg | 858.62 mi (1,381.82 km) |
