| Smolyan to Kalisz | 769.08 mi (1,237.71 km) |
| Smolyan to Kamien Pomorski | 969.95 mi (1,560.98 km) |
| Smolyan to Kamienna Gora | 757.76 mi (1,219.50 km) |
| Smolyan to Karczew | 743.36 mi (1,196.32 km) |
| Smolyan to Kartuzy | 929.89 mi (1,496.52 km) |
| Smolyan to Katowice | 658.74 mi (1,060.13 km) |
| Smolyan to Kedzierzyn-Kozle | 680.80 mi (1,095.64 km) |
| Smolyan to Kepno | 741.86 mi (1,193.91 km) |
| Smolyan to Ketrzyn | 877.01 mi (1,411.41 km) |
| Smolyan to Kety | 632.11 mi (1,017.29 km) |
| Smolyan to Kielce | 670.45 mi (1,078.99 km) |
| Smolyan to Kielczow | 750.53 mi (1,207.87 km) |
| Smolyan to Klobuck | 700.73 mi (1,127.72 km) |
| Smolyan to Klodzko | 722.33 mi (1,162.48 km) |
| Smolyan to Kluczbork | 718.81 mi (1,156.81 km) |
