| Friern Barnet to Oberkirch | 422.53 mi (680.00 km) |
| Friern Barnet to Obernburg am Main | 424.45 mi (683.09 km) |
| Friern Barnet to Obernkirchen | 397.42 mi (639.59 km) |
| Friern Barnet to Oberschleissheim | 570.05 mi (917.41 km) |
| Friern Barnet to Oberstdorf | 550.21 mi (885.48 km) |
| Friern Barnet to Obertraubling | 573.17 mi (922.43 km) |
| Friern Barnet to Obertshausen | 406.31 mi (653.89 km) |
| Friern Barnet to Oberursel | 392.57 mi (631.78 km) |
| Friern Barnet to Ochsenfurt | 467.74 mi (752.76 km) |
| Friern Barnet to Ochsenhausen | 511.84 mi (823.73 km) |
| Friern Barnet to Ochtrup | 315.76 mi (508.17 km) |
| Friern Barnet to Odenthal | 316.53 mi (509.41 km) |
| Friern Barnet to Oelde | 355.74 mi (572.51 km) |
| Friern Barnet to Oelsnitz | 541.41 mi (871.32 km) |
| Friern Barnet to Oer-Erkenschwick | 317.66 mi (511.22 km) |
