| Windsor to Oberkirch | 436.00 mi (701.67 km) |
| Windsor to Obernburg am Main | 441.48 mi (710.49 km) |
| Windsor to Obernkirchen | 418.18 mi (673.00 km) |
| Windsor to Oberschleissheim | 585.50 mi (942.27 km) |
| Windsor to Oberstdorf | 563.39 mi (906.68 km) |
| Windsor to Obertraubling | 590.00 mi (949.51 km) |
| Windsor to Obertshausen | 423.65 mi (681.80 km) |
| Windsor to Oberursel | 410.09 mi (659.97 km) |
| Windsor to Ochsenfurt | 484.81 mi (780.23 km) |
| Windsor to Ochsenhausen | 525.94 mi (846.42 km) |
| Windsor to Ochtrup | 336.55 mi (541.62 km) |
| Windsor to Odenthal | 335.35 mi (539.69 km) |
| Windsor to Oelde | 376.04 mi (605.17 km) |
| Windsor to Oelsnitz | 560.25 mi (901.63 km) |
| Windsor to Oer-Erkenschwick | 337.66 mi (543.41 km) |
