| Smolyan to Knurow | 662.43 mi (1,066.08 km) |
| Smolyan to Kobylka | 760.63 mi (1,224.12 km) |
| Smolyan to Kokoszki | 927.05 mi (1,491.95 km) |
| Smolyan to Kolbuszowa | 615.06 mi (989.84 km) |
| Smolyan to Kolno | 827.16 mi (1,331.19 km) |
| Smolyan to Kolo | 786.80 mi (1,266.24 km) |
| Smolyan to Kolobrzeg | 965.52 mi (1,553.85 km) |
| Smolyan to Koluszki | 739.44 mi (1,190.02 km) |
| Smolyan to Komorniki | 827.90 mi (1,332.38 km) |
| Smolyan to Konin | 794.23 mi (1,278.18 km) |
| Smolyan to Konskie | 694.79 mi (1,118.15 km) |
| Smolyan to Konstancin-Jeziorna | 744.75 mi (1,198.56 km) |
| Smolyan to Konstantynow Lodzki | 746.60 mi (1,201.54 km) |
| Smolyan to Koronowo | 869.21 mi (1,398.86 km) |
| Smolyan to Koscian | 818.04 mi (1,316.51 km) |
