| Nierstein to Karlovo | 928.76 mi (1,494.69 km) |
| Nierstein to Karnobat | 1,017.55 mi (1,637.59 km) |
| Nierstein to Kavarna | 1,043.15 mi (1,678.80 km) |
| Nierstein to Kazanlak | 953.69 mi (1,534.81 km) |
| Nierstein to Knezha | 863.90 mi (1,390.31 km) |
| Nierstein to Kostinbrod | 858.44 mi (1,381.53 km) |
| Nierstein to Kozloduy | 838.25 mi (1,349.04 km) |
| Nierstein to Kyustendil | 862.15 mi (1,387.50 km) |
| Nierstein to Levski | 912.04 mi (1,467.79 km) |
| Nierstein to Lom | 816.48 mi (1,313.99 km) |
| Nierstein to Lovech | 904.52 mi (1,455.69 km) |
| Nierstein to Lukovit | 879.62 mi (1,415.61 km) |
| Nierstein to Lyaskovets | 946.65 mi (1,523.49 km) |
| Nierstein to Mezdra | 863.06 mi (1,388.95 km) |
| Nierstein to Momchilgrad | 1,001.70 mi (1,612.08 km) |
