| Barton upon Humber to Oberkirch | 512.81 mi (825.29 km) |
| Barton upon Humber to Obernburg am Main | 488.00 mi (785.36 km) |
| Barton upon Humber to Obernkirchen | 409.59 mi (659.17 km) |
| Barton upon Humber to Oberschleissheim | 642.33 mi (1,033.73 km) |
| Barton upon Humber to Oberstdorf | 638.91 mi (1,028.23 km) |
| Barton upon Humber to Obertraubling | 633.50 mi (1,019.52 km) |
| Barton upon Humber to Obertshausen | 467.69 mi (752.68 km) |
| Barton upon Humber to Oberursel | 452.96 mi (728.97 km) |
| Barton upon Humber to Ochsenfurt | 529.09 mi (851.49 km) |
| Barton upon Humber to Ochsenhausen | 595.44 mi (958.27 km) |
| Barton upon Humber to Ochtrup | 333.89 mi (537.35 km) |
| Barton upon Humber to Odenthal | 367.79 mi (591.90 km) |
| Barton upon Humber to Oelde | 381.35 mi (613.72 km) |
| Barton upon Humber to Oelsnitz | 580.65 mi (934.46 km) |
| Barton upon Humber to Oer-Erkenschwick | 351.94 mi (566.39 km) |
