| Harsum to Karlovo | 954.78 mi (1,536.57 km) |
| Harsum to Karnobat | 1,030.31 mi (1,658.12 km) |
| Harsum to Kavarna | 1,041.12 mi (1,675.51 km) |
| Harsum to Kazanlak | 976.15 mi (1,570.96 km) |
| Harsum to Knezha | 886.30 mi (1,426.36 km) |
| Harsum to Kostinbrod | 893.71 mi (1,438.28 km) |
| Harsum to Kozloduy | 860.04 mi (1,384.11 km) |
| Harsum to Kyustendil | 906.27 mi (1,458.51 km) |
| Harsum to Levski | 928.96 mi (1,495.01 km) |
| Harsum to Lom | 841.26 mi (1,353.88 km) |
| Harsum to Lovech | 926.42 mi (1,490.92 km) |
| Harsum to Lukovit | 904.51 mi (1,455.67 km) |
| Harsum to Lyaskovets | 962.57 mi (1,549.10 km) |
| Harsum to Mezdra | 891.64 mi (1,434.96 km) |
| Harsum to Momchilgrad | 1,033.56 mi (1,663.36 km) |
