| Roudnice nad Labem to Oestrich-Winkel | 278.34 mi (447.95 km) |
| Roudnice nad Labem to Offenburg | 314.72 mi (506.49 km) |
| Roudnice nad Labem to Oftersheim | 262.89 mi (423.08 km) |
| Roudnice nad Labem to Ohrdruf | 157.15 mi (252.90 km) |
| Roudnice nad Labem to Ohringen | 228.51 mi (367.76 km) |
| Roudnice nad Labem to Olbernhau | 44.04 mi (70.88 km) |
| Roudnice nad Labem to Olching | 203.04 mi (326.77 km) |
| Roudnice nad Labem to Oldenburg | 319.36 mi (513.96 km) |
| Roudnice nad Labem to Oldenburg in Holstein | 303.21 mi (487.97 km) |
| Roudnice nad Labem to Olfen | 311.54 mi (501.37 km) |
| Roudnice nad Labem to Olpe | 284.06 mi (457.15 km) |
| Roudnice nad Labem to Olsberg | 259.77 mi (418.05 km) |
| Roudnice nad Labem to Oranienburg | 166.82 mi (268.47 km) |
| Roudnice nad Labem to Ortenberg | 229.35 mi (369.11 km) |
| Roudnice nad Labem to Oschatz | 78.67 mi (126.61 km) |
