| Nivelles to Karnobat | 1,201.32 mi (1,933.34 km) |
| Nivelles to Kavarna | 1,227.57 mi (1,975.58 km) |
| Nivelles to Kazanlak | 1,136.55 mi (1,829.10 km) |
| Nivelles to Knezha | 1,047.00 mi (1,684.98 km) |
| Nivelles to Kostinbrod | 1,039.61 mi (1,673.09 km) |
| Nivelles to Kozloduy | 1,021.49 mi (1,643.93 km) |
| Nivelles to Kyustendil | 1,041.43 mi (1,676.02 km) |
| Nivelles to Levski | 1,095.61 mi (1,763.22 km) |
| Nivelles to Lom | 999.42 mi (1,608.42 km) |
| Nivelles to Lovech | 1,087.58 mi (1,750.29 km) |
| Nivelles to Lukovit | 1,062.36 mi (1,709.71 km) |
| Nivelles to Lyaskovets | 1,130.25 mi (1,818.97 km) |
| Nivelles to Mezdra | 1,045.33 mi (1,682.30 km) |
| Nivelles to Momchilgrad | 1,182.97 mi (1,903.80 km) |
| Nivelles to Montana | 1,015.41 mi (1,634.15 km) |
