| Forbach to Karlovo | 969.02 mi (1,559.49 km) |
| Forbach to Karnobat | 1,062.14 mi (1,709.34 km) |
| Forbach to Kavarna | 1,092.87 mi (1,758.81 km) |
| Forbach to Kazanlak | 995.11 mi (1,601.48 km) |
| Forbach to Knezha | 906.23 mi (1,458.44 km) |
| Forbach to Kostinbrod | 895.73 mi (1,441.53 km) |
| Forbach to Kozloduy | 881.10 mi (1,418.00 km) |
| Forbach to Kyustendil | 895.69 mi (1,441.47 km) |
| Forbach to Levski | 955.98 mi (1,538.49 km) |
| Forbach to Lom | 858.43 mi (1,381.51 km) |
| Forbach to Lovech | 946.63 mi (1,523.46 km) |
| Forbach to Lukovit | 920.82 mi (1,481.92 km) |
| Forbach to Lyaskovets | 990.64 mi (1,594.29 km) |
| Forbach to Mezdra | 902.98 mi (1,453.21 km) |
| Forbach to Momchilgrad | 1,038.97 mi (1,672.07 km) |
