| Reghin to Oberkirch | 781.61 mi (1,257.88 km) |
| Reghin to Obernburg am Main | 744.49 mi (1,198.14 km) |
| Reghin to Obernkirchen | 793.25 mi (1,276.62 km) |
| Reghin to Oberschleissheim | 620.88 mi (999.22 km) |
| Reghin to Oberstdorf | 679.17 mi (1,093.02 km) |
| Reghin to Obertraubling | 599.86 mi (965.39 km) |
| Reghin to Obertshausen | 760.91 mi (1,224.56 km) |
| Reghin to Oberursel | 773.91 mi (1,245.49 km) |
| Reghin to Ochsenfurt | 701.46 mi (1,128.89 km) |
| Reghin to Ochsenhausen | 694.68 mi (1,117.98 km) |
| Reghin to Ochtrup | 868.19 mi (1,397.21 km) |
| Reghin to Odenthal | 848.84 mi (1,366.08 km) |
| Reghin to Oelde | 821.30 mi (1,321.75 km) |
| Reghin to Oelsnitz | 624.86 mi (1,005.61 km) |
| Reghin to Oer-Erkenschwick | 854.04 mi (1,374.44 km) |
