| Roudnice nad Labem to Karlovo | 733.67 mi (1,180.72 km) |
| Roudnice nad Labem to Karnobat | 807.65 mi (1,299.79 km) |
| Roudnice nad Labem to Kavarna | 818.91 mi (1,317.90 km) |
| Roudnice nad Labem to Kazanlak | 754.42 mi (1,214.12 km) |
| Roudnice nad Labem to Knezha | 664.84 mi (1,069.95 km) |
| Roudnice nad Labem to Kostinbrod | 674.98 mi (1,086.28 km) |
| Roudnice nad Labem to Kozloduy | 638.58 mi (1,027.70 km) |
| Roudnice nad Labem to Kyustendil | 690.25 mi (1,110.85 km) |
| Roudnice nad Labem to Levski | 706.69 mi (1,137.31 km) |
| Roudnice nad Labem to Lom | 620.41 mi (998.45 km) |
| Roudnice nad Labem to Lovech | 704.74 mi (1,134.18 km) |
| Roudnice nad Labem to Lukovit | 683.39 mi (1,099.81 km) |
| Roudnice nad Labem to Lyaskovets | 740.16 mi (1,191.17 km) |
| Roudnice nad Labem to Mezdra | 671.30 mi (1,080.35 km) |
| Roudnice nad Labem to Momchilgrad | 813.28 mi (1,308.85 km) |
