| Reghin to Oerlinghausen | 803.58 mi (1,293.24 km) |
| Reghin to Oestrich-Winkel | 796.42 mi (1,281.72 km) |
| Reghin to Offenburg | 788.27 mi (1,268.60 km) |
| Reghin to Oftersheim | 764.04 mi (1,229.61 km) |
| Reghin to Ohrdruf | 693.50 mi (1,116.08 km) |
| Reghin to Ohringen | 721.60 mi (1,161.30 km) |
| Reghin to Olbernhau | 583.19 mi (938.55 km) |
| Reghin to Olching | 632.11 mi (1,017.27 km) |
| Reghin to Oldenburg | 852.08 mi (1,371.29 km) |
| Reghin to Oldenburg in Holstein | 796.81 mi (1,282.34 km) |
| Reghin to Olfen | 850.06 mi (1,368.05 km) |
| Reghin to Olpe | 818.34 mi (1,316.99 km) |
| Reghin to Olsberg | 797.46 mi (1,283.39 km) |
| Reghin to Oranienburg | 656.50 mi (1,056.53 km) |
| Reghin to Ortenberg | 755.52 mi (1,215.90 km) |
