| Cities | Distance |
|---|---|
| Helmstedt to Karlovo | 921.30 mi (1,482.68 km) |
| Helmstedt to Karnobat | 994.46 mi (1,600.43 km) |
| Helmstedt to Kavarna | 1,003.12 mi (1,614.36 km) |
| Helmstedt to Kazanlak | 942.00 mi (1,516.00 km) |
| Helmstedt to Knezha | 852.46 mi (1,371.90 km) |
| Helmstedt to Kostinbrod | 862.08 mi (1,387.39 km) |
| Helmstedt to Kozloduy | 826.21 mi (1,329.65 km) |
| Helmstedt to Kyustendil | 876.25 mi (1,410.19 km) |
| Helmstedt to Levski | 894.06 mi (1,438.86 km) |
| Helmstedt to Lom | 808.02 mi (1,300.37 km) |
| Helmstedt to Lovech | 892.34 mi (1,436.08 km) |
| Helmstedt to Lukovit | 871.02 mi (1,401.77 km) |
| Helmstedt to Lyaskovets | 927.40 mi (1,492.51 km) |
| Helmstedt to Mezdra | 858.84 mi (1,382.16 km) |
| Helmstedt to Momchilgrad | 1,000.83 mi (1,610.68 km) |