| Kasterlee to Karnobat | 1,191.04 mi (1,916.80 km) |
| Kasterlee to Kavarna | 1,213.59 mi (1,953.08 km) |
| Kasterlee to Kazanlak | 1,128.55 mi (1,816.22 km) |
| Kasterlee to Knezha | 1,038.56 mi (1,671.39 km) |
| Kasterlee to Kostinbrod | 1,034.49 mi (1,664.85 km) |
| Kasterlee to Kozloduy | 1,012.76 mi (1,629.88 km) |
| Kasterlee to Kyustendil | 1,038.69 mi (1,671.61 km) |
| Kasterlee to Levski | 1,085.99 mi (1,747.74 km) |
| Kasterlee to Lom | 991.34 mi (1,595.41 km) |
| Kasterlee to Lovech | 1,079.21 mi (1,736.81 km) |
| Kasterlee to Lukovit | 1,054.65 mi (1,697.29 km) |
| Kasterlee to Lyaskovets | 1,120.52 mi (1,803.31 km) |
| Kasterlee to Mezdra | 1,038.49 mi (1,671.28 km) |
| Kasterlee to Momchilgrad | 1,177.66 mi (1,895.26 km) |
| Kasterlee to Montana | 1,008.59 mi (1,623.17 km) |
