| Cirencester to Oberkirch | 496.09 mi (798.38 km) |
| Cirencester to Obernburg am Main | 501.86 mi (807.66 km) |
| Cirencester to Obernkirchen | 472.69 mi (760.73 km) |
| Cirencester to Oberschleissheim | 646.10 mi (1,039.80 km) |
| Cirencester to Oberstdorf | 623.28 mi (1,003.08 km) |
| Cirencester to Obertraubling | 650.46 mi (1,046.81 km) |
| Cirencester to Obertshausen | 483.89 mi (778.75 km) |
| Cirencester to Oberursel | 470.24 mi (756.78 km) |
| Cirencester to Ochsenfurt | 545.18 mi (877.38 km) |
| Cirencester to Ochsenhausen | 586.25 mi (943.48 km) |
| Cirencester to Ochtrup | 391.09 mi (629.39 km) |
| Cirencester to Odenthal | 394.40 mi (634.73 km) |
| Cirencester to Oelde | 432.27 mi (695.68 km) |
| Cirencester to Oelsnitz | 619.26 mi (996.60 km) |
| Cirencester to Oer-Erkenschwick | 394.72 mi (635.23 km) |
