| Duchcov to Oestrich-Winkel | 256.95 mi (413.51 km) |
| Duchcov to Offenburg | 299.46 mi (481.93 km) |
| Duchcov to Oftersheim | 244.56 mi (393.58 km) |
| Duchcov to Ohrdruf | 132.73 mi (213.62 km) |
| Duchcov to Ohringen | 212.37 mi (341.78 km) |
| Duchcov to Olbernhau | 18.62 mi (29.96 km) |
| Duchcov to Olching | 198.78 mi (319.90 km) |
| Duchcov to Oldenburg | 293.97 mi (473.10 km) |
| Duchcov to Oldenburg in Holstein | 282.34 mi (454.39 km) |
| Duchcov to Olfen | 286.14 mi (460.49 km) |
| Duchcov to Olpe | 259.66 mi (417.88 km) |
| Duchcov to Olsberg | 234.64 mi (377.61 km) |
| Duchcov to Oranienburg | 150.18 mi (241.69 km) |
| Duchcov to Ortenberg | 206.93 mi (333.02 km) |
| Duchcov to Oschatz | 55.58 mi (89.45 km) |
