| Cognac to Oestrich-Winkel | 486.96 mi (783.69 km) |
| Cognac to Offenburg | 433.02 mi (696.88 km) |
| Cognac to Oftersheim | 486.74 mi (783.34 km) |
| Cognac to Ohrdruf | 619.17 mi (996.46 km) |
| Cognac to Ohringen | 518.62 mi (834.64 km) |
| Cognac to Olbernhau | 715.48 mi (1,151.46 km) |
| Cognac to Olching | 575.25 mi (925.77 km) |
| Cognac to Oldenburg | 641.13 mi (1,031.80 km) |
| Cognac to Oldenburg in Holstein | 773.63 mi (1,245.04 km) |
| Cognac to Olfen | 544.12 mi (875.67 km) |
| Cognac to Olpe | 524.39 mi (843.93 km) |
| Cognac to Olsberg | 560.74 mi (902.43 km) |
| Cognac to Oranienburg | 780.51 mi (1,256.11 km) |
| Cognac to Ortenberg | 539.44 mi (868.15 km) |
| Cognac to Oschatz | 725.23 mi (1,167.15 km) |
