| Bochum to Karlovo | 1,024.43 mi (1,648.67 km) |
| Bochum to Karnobat | 1,107.82 mi (1,782.86 km) |
| Bochum to Kavarna | 1,126.59 mi (1,813.07 km) |
| Bochum to Kazanlak | 1,047.96 mi (1,686.53 km) |
| Bochum to Knezha | 957.74 mi (1,541.33 km) |
| Bochum to Kostinbrod | 957.58 mi (1,541.07 km) |
| Bochum to Kozloduy | 931.70 mi (1,499.43 km) |
| Bochum to Kyustendil | 964.73 mi (1,552.58 km) |
| Bochum to Levski | 1,003.73 mi (1,615.34 km) |
| Bochum to Lom | 911.09 mi (1,466.25 km) |
| Bochum to Lovech | 998.34 mi (1,606.67 km) |
| Bochum to Lukovit | 974.60 mi (1,568.47 km) |
| Bochum to Lyaskovets | 1,038.05 mi (1,670.58 km) |
| Bochum to Mezdra | 959.50 mi (1,544.17 km) |
| Bochum to Momchilgrad | 1,100.06 mi (1,770.38 km) |
