| Koscierzyna to Karlovo | 851.36 mi (1,370.14 km) |
| Koscierzyna to Karnobat | 892.86 mi (1,436.92 km) |
| Koscierzyna to Kavarna | 873.76 mi (1,406.18 km) |
| Koscierzyna to Kazanlak | 863.30 mi (1,389.35 km) |
| Koscierzyna to Knezha | 783.58 mi (1,261.06 km) |
| Koscierzyna to Kostinbrod | 816.17 mi (1,313.50 km) |
| Koscierzyna to Kozloduy | 759.52 mi (1,222.33 km) |
| Koscierzyna to Kyustendil | 845.30 mi (1,360.37 km) |
| Koscierzyna to Levski | 810.07 mi (1,303.68 km) |
| Koscierzyna to Lom | 749.40 mi (1,206.04 km) |
| Koscierzyna to Lovech | 817.83 mi (1,316.18 km) |
| Koscierzyna to Lukovit | 804.58 mi (1,294.84 km) |
| Koscierzyna to Lyaskovets | 837.99 mi (1,348.62 km) |
| Koscierzyna to Mezdra | 800.78 mi (1,288.72 km) |
| Koscierzyna to Momchilgrad | 934.07 mi (1,503.24 km) |
