| Potters Bar to Karlovo | 1,320.80 mi (2,125.63 km) |
| Potters Bar to Karnobat | 1,410.34 mi (2,269.73 km) |
| Potters Bar to Kavarna | 1,435.08 mi (2,309.54 km) |
| Potters Bar to Kazanlak | 1,346.05 mi (2,166.26 km) |
| Potters Bar to Knezha | 1,256.41 mi (2,022.00 km) |
| Potters Bar to Kostinbrod | 1,249.28 mi (2,010.52 km) |
| Potters Bar to Kozloduy | 1,230.85 mi (1,980.86 km) |
| Potters Bar to Kyustendil | 1,250.86 mi (2,013.06 km) |
| Potters Bar to Levski | 1,304.79 mi (2,099.86 km) |
| Potters Bar to Lom | 1,208.89 mi (1,945.53 km) |
| Potters Bar to Lovech | 1,297.01 mi (2,087.34 km) |
| Potters Bar to Lukovit | 1,271.90 mi (2,046.92 km) |
| Potters Bar to Lyaskovets | 1,339.41 mi (2,155.57 km) |
| Potters Bar to Mezdra | 1,254.95 mi (2,019.65 km) |
| Potters Bar to Momchilgrad | 1,392.63 mi (2,241.23 km) |
