| Leigh-on-Sea to Karlovo | 1,283.37 mi (2,065.38 km) |
| Leigh-on-Sea to Karnobat | 1,372.89 mi (2,209.45 km) |
| Leigh-on-Sea to Kavarna | 1,397.72 mi (2,249.42 km) |
| Leigh-on-Sea to Kazanlak | 1,308.61 mi (2,106.00 km) |
| Leigh-on-Sea to Knezha | 1,218.96 mi (1,961.73 km) |
| Leigh-on-Sea to Kostinbrod | 1,211.91 mi (1,950.37 km) |
| Leigh-on-Sea to Kozloduy | 1,193.39 mi (1,920.58 km) |
| Leigh-on-Sea to Kyustendil | 1,213.61 mi (1,953.11 km) |
| Leigh-on-Sea to Levski | 1,267.33 mi (2,039.57 km) |
| Leigh-on-Sea to Lom | 1,171.44 mi (1,885.26 km) |
| Leigh-on-Sea to Lovech | 1,259.56 mi (2,027.07 km) |
| Leigh-on-Sea to Lukovit | 1,234.45 mi (1,986.66 km) |
| Leigh-on-Sea to Lyaskovets | 1,301.95 mi (2,095.29 km) |
| Leigh-on-Sea to Mezdra | 1,217.53 mi (1,959.42 km) |
| Leigh-on-Sea to Momchilgrad | 1,355.26 mi (2,181.08 km) |
