| Westerlo to Karnobat | 1,188.25 mi (1,912.30 km) |
| Westerlo to Kavarna | 1,211.61 mi (1,949.89 km) |
| Westerlo to Kazanlak | 1,125.26 mi (1,810.93 km) |
| Westerlo to Knezha | 1,035.34 mi (1,666.22 km) |
| Westerlo to Kostinbrod | 1,030.58 mi (1,658.56 km) |
| Westerlo to Kozloduy | 1,009.60 mi (1,624.79 km) |
| Westerlo to Kyustendil | 1,034.30 mi (1,664.54 km) |
| Westerlo to Levski | 1,083.04 mi (1,742.98 km) |
| Westerlo to Lom | 988.04 mi (1,590.09 km) |
| Westerlo to Lovech | 1,075.98 mi (1,731.63 km) |
| Westerlo to Lukovit | 1,051.28 mi (1,691.87 km) |
| Westerlo to Lyaskovets | 1,117.60 mi (1,798.60 km) |
| Westerlo to Mezdra | 1,034.94 mi (1,665.57 km) |
| Westerlo to Momchilgrad | 1,173.82 mi (1,889.07 km) |
| Westerlo to Montana | 1,005.03 mi (1,617.44 km) |
