| Gelsenkirchen to Karlovo | 1,029.95 mi (1,657.55 km) |
| Gelsenkirchen to Karnobat | 1,113.35 mi (1,791.76 km) |
| Gelsenkirchen to Kavarna | 1,132.10 mi (1,821.94 km) |
| Gelsenkirchen to Kazanlak | 1,053.49 mi (1,695.42 km) |
| Gelsenkirchen to Knezha | 963.26 mi (1,550.22 km) |
| Gelsenkirchen to Kostinbrod | 963.07 mi (1,549.91 km) |
| Gelsenkirchen to Kozloduy | 937.23 mi (1,508.32 km) |
| Gelsenkirchen to Kyustendil | 970.18 mi (1,561.36 km) |
| Gelsenkirchen to Levski | 1,009.26 mi (1,624.24 km) |
| Gelsenkirchen to Lom | 916.61 mi (1,475.14 km) |
| Gelsenkirchen to Lovech | 1,003.87 mi (1,615.57 km) |
| Gelsenkirchen to Lukovit | 980.12 mi (1,577.35 km) |
| Gelsenkirchen to Lyaskovets | 1,043.58 mi (1,679.48 km) |
| Gelsenkirchen to Mezdra | 965.02 mi (1,553.04 km) |
| Gelsenkirchen to Momchilgrad | 1,105.57 mi (1,779.24 km) |
