| Barreiro to Karlovo | 1,784.53 mi (2,871.92 km) |
| Barreiro to Karnobat | 1,894.98 mi (3,049.68 km) |
| Barreiro to Kavarna | 1,959.52 mi (3,153.55 km) |
| Barreiro to Kazanlak | 1,814.72 mi (2,920.50 km) |
| Barreiro to Knezha | 1,746.39 mi (2,810.54 km) |
| Barreiro to Kostinbrod | 1,703.44 mi (2,741.41 km) |
| Barreiro to Kozloduy | 1,728.88 mi (2,782.37 km) |
| Barreiro to Kyustendil | 1,677.42 mi (2,699.55 km) |
| Barreiro to Levski | 1,799.21 mi (2,895.55 km) |
| Barreiro to Lom | 1,704.19 mi (2,742.64 km) |
| Barreiro to Lovech | 1,778.70 mi (2,862.54 km) |
| Barreiro to Lukovit | 1,750.86 mi (2,817.73 km) |
| Barreiro to Lyaskovets | 1,829.16 mi (2,943.75 km) |
| Barreiro to Mezdra | 1,727.41 mi (2,779.99 km) |
| Barreiro to Momchilgrad | 1,821.05 mi (2,930.70 km) |
