| Berkhampstead to Karlovo | 1,337.47 mi (2,152.44 km) |
| Berkhampstead to Karnobat | 1,427.03 mi (2,296.59 km) |
| Berkhampstead to Kavarna | 1,451.75 mi (2,336.37 km) |
| Berkhampstead to Kazanlak | 1,362.73 mi (2,193.10 km) |
| Berkhampstead to Knezha | 1,273.09 mi (2,048.85 km) |
| Berkhampstead to Kostinbrod | 1,265.90 mi (2,037.27 km) |
| Berkhampstead to Kozloduy | 1,247.53 mi (2,007.71 km) |
| Berkhampstead to Kyustendil | 1,267.42 mi (2,039.71 km) |
| Berkhampstead to Levski | 1,321.48 mi (2,126.71 km) |
| Berkhampstead to Lom | 1,225.57 mi (1,972.37 km) |
| Berkhampstead to Lovech | 1,313.69 mi (2,114.19 km) |
| Berkhampstead to Lukovit | 1,288.57 mi (2,073.75 km) |
| Berkhampstead to Lyaskovets | 1,356.10 mi (2,182.43 km) |
| Berkhampstead to Mezdra | 1,271.61 mi (2,046.47 km) |
| Berkhampstead to Momchilgrad | 1,409.26 mi (2,267.98 km) |
