| Harlingen to Karlovo | 1,148.96 mi (1,849.08 km) |
| Harlingen to Karnobat | 1,227.86 mi (1,976.05 km) |
| Harlingen to Kavarna | 1,241.05 mi (1,997.28 km) |
| Harlingen to Kazanlak | 1,171.34 mi (1,885.10 km) |
| Harlingen to Knezha | 1,081.19 mi (1,740.01 km) |
| Harlingen to Kostinbrod | 1,084.88 mi (1,745.94 km) |
| Harlingen to Kozloduy | 1,054.99 mi (1,697.84 km) |
| Harlingen to Kyustendil | 1,094.40 mi (1,761.26 km) |
| Harlingen to Levski | 1,125.34 mi (1,811.05 km) |
| Harlingen to Lom | 1,035.33 mi (1,666.21 km) |
| Harlingen to Lovech | 1,121.59 mi (1,805.02 km) |
| Harlingen to Lukovit | 1,098.82 mi (1,768.38 km) |
| Harlingen to Lyaskovets | 1,159.27 mi (1,865.67 km) |
| Harlingen to Mezdra | 1,084.86 mi (1,745.91 km) |
| Harlingen to Momchilgrad | 1,226.32 mi (1,973.57 km) |
