| Gustrow to Karlovo | 962.18 mi (1,548.48 km) |
| Gustrow to Karnobat | 1,025.15 mi (1,649.82 km) |
| Gustrow to Kavarna | 1,023.66 mi (1,647.43 km) |
| Gustrow to Kazanlak | 980.14 mi (1,577.38 km) |
| Gustrow to Knezha | 892.65 mi (1,436.58 km) |
| Gustrow to Kostinbrod | 910.21 mi (1,464.84 km) |
| Gustrow to Kozloduy | 866.70 mi (1,394.82 km) |
| Gustrow to Kyustendil | 929.52 mi (1,495.92 km) |
| Gustrow to Levski | 929.66 mi (1,496.15 km) |
| Gustrow to Lom | 850.93 mi (1,369.45 km) |
| Gustrow to Lovech | 931.22 mi (1,498.66 km) |
| Gustrow to Lukovit | 912.35 mi (1,468.29 km) |
| Gustrow to Lyaskovets | 961.58 mi (1,547.51 km) |
| Gustrow to Mezdra | 902.83 mi (1,452.96 km) |
| Gustrow to Momchilgrad | 1,043.84 mi (1,679.89 km) |
