| Cirencester to Oerlinghausen | 453.88 mi (730.46 km) |
| Cirencester to Oestrich-Winkel | 450.26 mi (724.63 km) |
| Cirencester to Offenburg | 492.51 mi (792.62 km) |
| Cirencester to Oftersheim | 490.39 mi (789.21 km) |
| Cirencester to Ohrdruf | 551.72 mi (887.91 km) |
| Cirencester to Ohringen | 532.94 mi (857.68 km) |
| Cirencester to Olbernhau | 665.29 mi (1,070.69 km) |
| Cirencester to Olching | 637.43 mi (1,025.84 km) |
| Cirencester to Oldenburg | 439.67 mi (707.59 km) |
| Cirencester to Oldenburg in Holstein | 562.29 mi (904.91 km) |
| Cirencester to Olfen | 400.01 mi (643.76 km) |
| Cirencester to Olpe | 425.24 mi (684.36 km) |
| Cirencester to Olsberg | 449.52 mi (723.44 km) |
| Cirencester to Oranienburg | 646.10 mi (1,039.80 km) |
| Cirencester to Ortenberg | 487.60 mi (784.72 km) |
