| Royken to Karlovo | 1,328.33 mi (2,137.75 km) |
| Royken to Karnobat | 1,373.41 mi (2,210.29 km) |
| Royken to Kavarna | 1,353.98 mi (2,179.02 km) |
| Royken to Kazanlak | 1,341.68 mi (2,159.22 km) |
| Royken to Knezha | 1,259.72 mi (2,027.32 km) |
| Royken to Kostinbrod | 1,287.75 mi (2,072.43 km) |
| Royken to Kozloduy | 1,234.97 mi (1,987.49 km) |
| Royken to Kyustendil | 1,313.23 mi (2,113.44 km) |
| Royken to Levski | 1,288.76 mi (2,074.05 km) |
| Royken to Lom | 1,223.04 mi (1,968.29 km) |
| Royken to Lovech | 1,295.25 mi (2,084.50 km) |
| Royken to Lukovit | 1,280.49 mi (2,060.75 km) |
| Royken to Lyaskovets | 1,317.46 mi (2,120.25 km) |
| Royken to Mezdra | 1,274.97 mi (2,051.87 km) |
| Royken to Momchilgrad | 1,411.17 mi (2,271.06 km) |
