| Horbury to Karlovo | 1,421.31 mi (2,287.38 km) |
| Horbury to Karnobat | 1,505.41 mi (2,422.72 km) |
| Horbury to Kavarna | 1,523.31 mi (2,451.53 km) |
| Horbury to Kazanlak | 1,445.16 mi (2,325.76 km) |
| Horbury to Knezha | 1,354.97 mi (2,180.62 km) |
| Horbury to Kostinbrod | 1,353.20 mi (2,177.76 km) |
| Horbury to Kozloduy | 1,328.99 mi (2,138.80 km) |
| Horbury to Kyustendil | 1,358.43 mi (2,186.19 km) |
| Horbury to Levski | 1,401.25 mi (2,255.09 km) |
| Horbury to Lom | 1,308.14 mi (2,105.25 km) |
| Horbury to Lovech | 1,395.60 mi (2,246.00 km) |
| Horbury to Lukovit | 1,371.62 mi (2,207.40 km) |
| Horbury to Lyaskovets | 1,435.59 mi (2,310.37 km) |
| Horbury to Mezdra | 1,356.12 mi (2,182.47 km) |
| Horbury to Momchilgrad | 1,496.11 mi (2,407.75 km) |
