| Mablethorpe to Karlovo | 1,343.88 mi (2,162.76 km) |
| Mablethorpe to Karnobat | 1,427.65 mi (2,297.58 km) |
| Mablethorpe to Kavarna | 1,445.44 mi (2,326.20 km) |
| Mablethorpe to Kazanlak | 1,367.62 mi (2,200.98 km) |
| Mablethorpe to Knezha | 1,277.42 mi (2,055.81 km) |
| Mablethorpe to Kostinbrod | 1,276.09 mi (2,053.67 km) |
| Mablethorpe to Kozloduy | 1,251.41 mi (2,013.95 km) |
| Mablethorpe to Kyustendil | 1,281.76 mi (2,062.79 km) |
| Mablethorpe to Levski | 1,323.57 mi (2,130.07 km) |
| Mablethorpe to Lom | 1,230.65 mi (1,980.54 km) |
| Mablethorpe to Lovech | 1,318.04 mi (2,121.18 km) |
| Mablethorpe to Lukovit | 1,294.14 mi (2,082.71 km) |
| Mablethorpe to Lyaskovets | 1,357.89 mi (2,185.32 km) |
| Mablethorpe to Mezdra | 1,278.76 mi (2,057.97 km) |
| Mablethorpe to Momchilgrad | 1,418.91 mi (2,283.52 km) |
