| Kerkrade to Karlovo | 1,048.87 mi (1,687.99 km) |
| Kerkrade to Karnobat | 1,136.20 mi (1,828.54 km) |
| Kerkrade to Kavarna | 1,159.39 mi (1,865.85 km) |
| Kerkrade to Kazanlak | 1,073.46 mi (1,727.56 km) |
| Kerkrade to Knezha | 983.49 mi (1,582.78 km) |
| Kerkrade to Kostinbrod | 979.25 mi (1,575.95 km) |
| Kerkrade to Kozloduy | 957.72 mi (1,541.30 km) |
| Kerkrade to Kyustendil | 983.46 mi (1,582.72 km) |
| Kerkrade to Levski | 1,031.06 mi (1,659.33 km) |
| Kerkrade to Lom | 936.24 mi (1,506.74 km) |
| Kerkrade to Lovech | 1,024.14 mi (1,648.20 km) |
| Kerkrade to Lukovit | 999.53 mi (1,608.58 km) |
| Kerkrade to Lyaskovets | 1,065.61 mi (1,714.93 km) |
| Kerkrade to Mezdra | 983.31 mi (1,582.48 km) |
| Kerkrade to Momchilgrad | 1,122.42 mi (1,806.37 km) |
