| Hitchin to Oberkirch | 438.13 mi (705.10 km) |
| Hitchin to Obernburg am Main | 435.38 mi (700.68 km) |
| Hitchin to Obernkirchen | 399.27 mi (642.56 km) |
| Hitchin to Oberschleissheim | 583.09 mi (938.39 km) |
| Hitchin to Oberstdorf | 565.96 mi (910.82 km) |
| Hitchin to Obertraubling | 584.20 mi (940.19 km) |
| Hitchin to Obertshausen | 416.75 mi (670.69 km) |
| Hitchin to Oberursel | 402.75 mi (648.16 km) |
| Hitchin to Ochsenfurt | 478.52 mi (770.11 km) |
| Hitchin to Ochsenhausen | 526.62 mi (847.51 km) |
| Hitchin to Ochtrup | 317.72 mi (511.32 km) |
| Hitchin to Odenthal | 324.39 mi (522.05 km) |
| Hitchin to Oelde | 359.49 mi (578.54 km) |
| Hitchin to Oelsnitz | 548.76 mi (883.14 km) |
| Hitchin to Oer-Erkenschwick | 322.48 mi (518.99 km) |
