| Somero to Karlovo | 1,244.14 mi (2,002.25 km) |
| Somero to Karnobat | 1,252.11 mi (2,015.07 km) |
| Somero to Kavarna | 1,205.13 mi (1,939.46 km) |
| Somero to Kazanlak | 1,247.32 mi (2,007.37 km) |
| Somero to Knezha | 1,184.03 mi (1,905.51 km) |
| Somero to Kostinbrod | 1,231.07 mi (1,981.22 km) |
| Somero to Kozloduy | 1,164.26 mi (1,873.69 km) |
| Somero to Kyustendil | 1,268.34 mi (2,041.20 km) |
| Somero to Levski | 1,194.90 mi (1,923.00 km) |
| Somero to Lom | 1,161.36 mi (1,869.02 km) |
| Somero to Lovech | 1,210.07 mi (1,947.42 km) |
| Somero to Lukovit | 1,204.83 mi (1,938.98 km) |
| Somero to Lyaskovets | 1,214.90 mi (1,955.19 km) |
| Somero to Mezdra | 1,208.00 mi (1,944.09 km) |
| Somero to Momchilgrad | 1,322.12 mi (2,127.75 km) |
