| Hudiksvall to Karlovo | 1,356.39 mi (2,182.89 km) |
| Hudiksvall to Karnobat | 1,380.67 mi (2,221.98 km) |
| Hudiksvall to Kavarna | 1,344.77 mi (2,164.19 km) |
| Hudiksvall to Kazanlak | 1,364.10 mi (2,195.30 km) |
| Hudiksvall to Knezha | 1,291.50 mi (2,078.47 km) |
| Hudiksvall to Kostinbrod | 1,330.82 mi (2,141.75 km) |
| Hudiksvall to Kozloduy | 1,269.15 mi (2,042.50 km) |
| Hudiksvall to Kyustendil | 1,363.37 mi (2,194.14 km) |
| Hudiksvall to Levski | 1,310.62 mi (2,109.24 km) |
| Hudiksvall to Lom | 1,262.14 mi (2,031.21 km) |
| Hudiksvall to Lovech | 1,322.21 mi (2,127.89 km) |
| Hudiksvall to Lukovit | 1,312.65 mi (2,112.50 km) |
| Hudiksvall to Lyaskovets | 1,334.77 mi (2,148.10 km) |
| Hudiksvall to Mezdra | 1,311.99 mi (2,111.44 km) |
| Hudiksvall to Momchilgrad | 1,437.65 mi (2,313.68 km) |
