| Zuidhorn to Karlovo | 1,117.85 mi (1,799.00 km) |
| Zuidhorn to Karnobat | 1,195.05 mi (1,923.24 km) |
| Zuidhorn to Kavarna | 1,206.59 mi (1,941.82 km) |
| Zuidhorn to Kazanlak | 1,139.76 mi (1,834.27 km) |
| Zuidhorn to Knezha | 1,049.73 mi (1,689.37 km) |
| Zuidhorn to Kostinbrod | 1,055.03 mi (1,697.90 km) |
| Zuidhorn to Kozloduy | 1,023.49 mi (1,647.15 km) |
| Zuidhorn to Kyustendil | 1,065.73 mi (1,715.13 km) |
| Zuidhorn to Levski | 1,093.15 mi (1,759.25 km) |
| Zuidhorn to Lom | 1,004.23 mi (1,616.15 km) |
| Zuidhorn to Lovech | 1,090.00 mi (1,754.19 km) |
| Zuidhorn to Lukovit | 1,067.63 mi (1,718.18 km) |
| Zuidhorn to Lyaskovets | 1,126.92 mi (1,813.60 km) |
| Zuidhorn to Mezdra | 1,054.15 mi (1,696.49 km) |
| Zuidhorn to Momchilgrad | 1,195.86 mi (1,924.56 km) |
