| Mettlach to Karlovo | 989.31 mi (1,592.14 km) |
| Mettlach to Karnobat | 1,081.53 mi (1,740.55 km) |
| Mettlach to Kavarna | 1,111.00 mi (1,787.98 km) |
| Mettlach to Kazanlak | 1,015.17 mi (1,633.76 km) |
| Mettlach to Knezha | 926.05 mi (1,490.34 km) |
| Mettlach to Kostinbrod | 916.56 mi (1,475.06 km) |
| Mettlach to Kozloduy | 900.80 mi (1,449.70 km) |
| Mettlach to Kyustendil | 917.19 mi (1,476.07 km) |
| Mettlach to Levski | 975.47 mi (1,569.87 km) |
| Mettlach to Lom | 878.31 mi (1,413.50 km) |
| Mettlach to Lovech | 966.52 mi (1,555.47 km) |
| Mettlach to Lukovit | 940.89 mi (1,514.22 km) |
| Mettlach to Lyaskovets | 1,010.14 mi (1,625.66 km) |
| Mettlach to Mezdra | 923.31 mi (1,485.92 km) |
| Mettlach to Momchilgrad | 1,059.87 mi (1,705.70 km) |
