| Hellevoetsluis to Karlovo | 1,152.38 mi (1,854.58 km) |
| Hellevoetsluis to Karnobat | 1,238.09 mi (1,992.51 km) |
| Hellevoetsluis to Kavarna | 1,258.86 mi (2,025.93 km) |
| Hellevoetsluis to Kazanlak | 1,176.58 mi (1,893.52 km) |
| Hellevoetsluis to Knezha | 1,086.47 mi (1,748.51 km) |
| Hellevoetsluis to Kostinbrod | 1,083.65 mi (1,743.96 km) |
| Hellevoetsluis to Kozloduy | 1,060.58 mi (1,706.84 km) |
| Hellevoetsluis to Kyustendil | 1,088.61 mi (1,751.95 km) |
| Hellevoetsluis to Levski | 1,133.39 mi (1,824.01 km) |
| Hellevoetsluis to Lom | 1,039.44 mi (1,672.81 km) |
| Hellevoetsluis to Lovech | 1,127.12 mi (1,813.93 km) |
| Hellevoetsluis to Lukovit | 1,102.84 mi (1,774.85 km) |
| Hellevoetsluis to Lyaskovets | 1,167.85 mi (1,879.47 km) |
| Hellevoetsluis to Mezdra | 1,087.02 mi (1,749.39 km) |
| Hellevoetsluis to Momchilgrad | 1,226.67 mi (1,974.13 km) |
