| Karlskoga to Karlovo | 1,233.61 mi (1,985.31 km) |
| Karlskoga to Karnobat | 1,270.07 mi (2,043.99 km) |
| Karlskoga to Kavarna | 1,244.09 mi (2,002.17 km) |
| Karlskoga to Kazanlak | 1,244.55 mi (2,002.92 km) |
| Karlskoga to Knezha | 1,166.30 mi (1,876.98 km) |
| Karlskoga to Kostinbrod | 1,199.68 mi (1,930.69 km) |
| Karlskoga to Kozloduy | 1,142.50 mi (1,838.68 km) |
| Karlskoga to Kyustendil | 1,228.65 mi (1,977.32 km) |
| Karlskoga to Levski | 1,191.12 mi (1,916.93 km) |
| Karlskoga to Lom | 1,132.76 mi (1,823.00 km) |
| Karlskoga to Lovech | 1,199.88 mi (1,931.01 km) |
| Karlskoga to Lukovit | 1,187.35 mi (1,910.86 km) |
| Karlskoga to Lyaskovets | 1,218.03 mi (1,960.23 km) |
| Karlskoga to Mezdra | 1,184.02 mi (1,905.49 km) |
| Karlskoga to Momchilgrad | 1,316.14 mi (2,118.13 km) |
