| Bolsward to Kalisz | 535.74 mi (862.20 km) |
| Bolsward to Kamien Pomorski | 384.36 mi (618.57 km) |
| Bolsward to Kamienna Gora | 473.87 mi (762.62 km) |
| Bolsward to Karczew | 662.08 mi (1,065.51 km) |
| Bolsward to Kartuzy | 524.71 mi (844.45 km) |
| Bolsward to Katowice | 608.25 mi (978.88 km) |
| Bolsward to Kedzierzyn-Kozle | 572.96 mi (922.09 km) |
| Bolsward to Kepno | 540.97 mi (870.61 km) |
| Bolsward to Ketrzyn | 652.64 mi (1,050.33 km) |
| Bolsward to Kety | 626.89 mi (1,008.89 km) |
| Bolsward to Kielce | 659.01 mi (1,060.57 km) |
| Bolsward to Kielczow | 511.17 mi (822.64 km) |
| Bolsward to Klobuck | 588.18 mi (946.58 km) |
| Bolsward to Klodzko | 508.48 mi (818.32 km) |
| Bolsward to Kluczbork | 557.28 mi (896.85 km) |
