| Viareggio to Kalisz | 654.29 mi (1,052.98 km) |
| Viareggio to Kamien Pomorski | 727.22 mi (1,170.35 km) |
| Viareggio to Kamienna Gora | 548.87 mi (883.32 km) |
| Viareggio to Karczew | 760.65 mi (1,224.14 km) |
| Viareggio to Kartuzy | 806.43 mi (1,297.83 km) |
| Viareggio to Katowice | 603.94 mi (971.94 km) |
| Viareggio to Kedzierzyn-Kozle | 582.74 mi (937.83 km) |
| Viareggio to Kepno | 625.72 mi (1,007.00 km) |
| Viareggio to Ketrzyn | 865.65 mi (1,393.12 km) |
| Viareggio to Kety | 593.38 mi (954.95 km) |
| Viareggio to Kielce | 684.65 mi (1,101.84 km) |
| Viareggio to Kielczow | 596.99 mi (960.76 km) |
| Viareggio to Klobuck | 633.30 mi (1,019.19 km) |
| Viareggio to Klodzko | 543.82 mi (875.20 km) |
| Viareggio to Kluczbork | 616.02 mi (991.38 km) |
