| Worcester to Oberkirch | 519.07 mi (835.36 km) |
| Worcester to Obernburg am Main | 519.26 mi (835.66 km) |
| Worcester to Obernkirchen | 479.38 mi (771.49 km) |
| Worcester to Oberschleissheim | 666.19 mi (1,072.14 km) |
| Worcester to Oberstdorf | 646.71 mi (1,040.77 km) |
| Worcester to Obertraubling | 668.08 mi (1,075.17 km) |
| Worcester to Obertshausen | 500.70 mi (805.80 km) |
| Worcester to Oberursel | 486.72 mi (783.31 km) |
| Worcester to Ochsenfurt | 562.43 mi (905.15 km) |
| Worcester to Ochsenhausen | 608.41 mi (979.14 km) |
| Worcester to Ochtrup | 398.27 mi (640.95 km) |
| Worcester to Odenthal | 408.23 mi (656.98 km) |
| Worcester to Oelde | 441.34 mi (710.27 km) |
| Worcester to Oelsnitz | 632.34 mi (1,017.65 km) |
| Worcester to Oer-Erkenschwick | 405.13 mi (651.99 km) |
