| Castelnau-le-Lez to Karlovo | 1,053.40 mi (1,695.29 km) |
| Castelnau-le-Lez to Karnobat | 1,162.08 mi (1,870.19 km) |
| Castelnau-le-Lez to Kavarna | 1,219.40 mi (1,962.43 km) |
| Castelnau-le-Lez to Kazanlak | 1,083.34 mi (1,743.47 km) |
| Castelnau-le-Lez to Knezha | 1,007.86 mi (1,622.00 km) |
| Castelnau-le-Lez to Kostinbrod | 971.85 mi (1,564.04 km) |
| Castelnau-le-Lez to Kozloduy | 988.13 mi (1,590.24 km) |
| Castelnau-le-Lez to Kyustendil | 952.21 mi (1,532.43 km) |
| Castelnau-le-Lez to Levski | 1,061.31 mi (1,708.02 km) |
| Castelnau-le-Lez to Lom | 963.24 mi (1,550.18 km) |
| Castelnau-le-Lez to Lovech | 1,043.04 mi (1,678.61 km) |
| Castelnau-le-Lez to Lukovit | 1,014.93 mi (1,633.38 km) |
| Castelnau-le-Lez to Lyaskovets | 1,093.18 mi (1,759.30 km) |
| Castelnau-le-Lez to Mezdra | 992.21 mi (1,596.81 km) |
| Castelnau-le-Lez to Momchilgrad | 1,100.94 mi (1,771.80 km) |
