| Harlingen to Krotoszyn | 515.53 mi (829.67 km) |
| Harlingen to Kruszwica | 537.77 mi (865.46 km) |
| Harlingen to Krynica | 717.69 mi (1,155.02 km) |
| Harlingen to Krzeszowice | 642.88 mi (1,034.62 km) |
| Harlingen to Kudowa-Zdroj | 498.46 mi (802.19 km) |
| Harlingen to Kutno | 586.26 mi (943.49 km) |
| Harlingen to Kwidzyn | 556.08 mi (894.92 km) |
| Harlingen to Lancut | 750.21 mi (1,207.35 km) |
| Harlingen to Lapy | 722.85 mi (1,163.32 km) |
| Harlingen to Lask | 587.34 mi (945.24 km) |
| Harlingen to Laziska Gorne | 610.92 mi (983.17 km) |
| Harlingen to Lebork | 510.34 mi (821.31 km) |
| Harlingen to Leczna | 747.92 mi (1,203.65 km) |
| Harlingen to Leczyca | 582.09 mi (936.79 km) |
| Harlingen to Legionowo | 646.79 mi (1,040.91 km) |
