| Kalmthout to Karnobat | 1,213.83 mi (1,953.48 km) |
| Kalmthout to Kavarna | 1,236.25 mi (1,989.55 km) |
| Kalmthout to Kazanlak | 1,151.36 mi (1,852.94 km) |
| Kalmthout to Knezha | 1,061.37 mi (1,708.11 km) |
| Kalmthout to Kostinbrod | 1,057.27 mi (1,701.51 km) |
| Kalmthout to Kozloduy | 1,035.57 mi (1,666.59 km) |
| Kalmthout to Kyustendil | 1,061.39 mi (1,708.15 km) |
| Kalmthout to Levski | 1,108.79 mi (1,784.43 km) |
| Kalmthout to Lom | 1,014.15 mi (1,632.12 km) |
| Kalmthout to Lovech | 1,102.02 mi (1,773.53 km) |
| Kalmthout to Lukovit | 1,077.46 mi (1,734.00 km) |
| Kalmthout to Lyaskovets | 1,143.32 mi (1,840.00 km) |
| Kalmthout to Mezdra | 1,061.29 mi (1,707.99 km) |
| Kalmthout to Momchilgrad | 1,200.45 mi (1,931.93 km) |
| Kalmthout to Montana | 1,031.40 mi (1,659.88 km) |
