| Heckmondwike to Oberkirch | 553.00 mi (889.96 km) |
| Heckmondwike to Obernburg am Main | 533.11 mi (857.95 km) |
| Heckmondwike to Obernkirchen | 459.14 mi (738.92 km) |
| Heckmondwike to Oberschleissheim | 686.65 mi (1,105.06 km) |
| Heckmondwike to Oberstdorf | 679.98 mi (1,094.32 km) |
| Heckmondwike to Obertraubling | 679.62 mi (1,093.74 km) |
| Heckmondwike to Obertshausen | 513.01 mi (825.61 km) |
| Heckmondwike to Oberursel | 498.34 mi (802.00 km) |
| Heckmondwike to Ochsenfurt | 574.71 mi (924.91 km) |
| Heckmondwike to Ochsenhausen | 637.47 mi (1,025.91 km) |
| Heckmondwike to Ochtrup | 382.83 mi (616.11 km) |
| Heckmondwike to Odenthal | 413.80 mi (665.94 km) |
| Heckmondwike to Oelde | 430.03 mi (692.07 km) |
| Heckmondwike to Oelsnitz | 628.95 mi (1,012.19 km) |
| Heckmondwike to Oer-Erkenschwick | 399.71 mi (643.28 km) |
