| Darlaston to Oberkirch | 524.21 mi (843.64 km) |
| Darlaston to Obernburg am Main | 519.06 mi (835.35 km) |
| Darlaston to Obernkirchen | 470.42 mi (757.07 km) |
| Darlaston to Oberschleissheim | 668.18 mi (1,075.33 km) |
| Darlaston to Oberstdorf | 652.04 mi (1,049.36 km) |
| Darlaston to Obertraubling | 667.74 mi (1,074.63 km) |
| Darlaston to Obertshausen | 500.03 mi (804.71 km) |
| Darlaston to Oberursel | 485.81 mi (781.83 km) |
| Darlaston to Ochsenfurt | 561.99 mi (904.43 km) |
| Darlaston to Ochsenhausen | 612.52 mi (985.76 km) |
| Darlaston to Ochtrup | 390.01 mi (627.67 km) |
| Darlaston to Odenthal | 405.31 mi (652.29 km) |
| Darlaston to Oelde | 434.37 mi (699.05 km) |
| Darlaston to Oelsnitz | 628.10 mi (1,010.83 km) |
| Darlaston to Oer-Erkenschwick | 399.41 mi (642.78 km) |
