| Gulbene to Karlovo | 1,007.06 mi (1,620.71 km) |
| Gulbene to Karnobat | 1,004.21 mi (1,616.12 km) |
| Gulbene to Kavarna | 951.39 mi (1,531.11 km) |
| Gulbene to Kazanlak | 1,007.05 mi (1,620.69 km) |
| Gulbene to Knezha | 951.39 mi (1,531.11 km) |
| Gulbene to Kostinbrod | 1,003.49 mi (1,614.97 km) |
| Gulbene to Kozloduy | 933.94 mi (1,503.02 km) |
| Gulbene to Kyustendil | 1,043.80 mi (1,679.83 km) |
| Gulbene to Levski | 956.09 mi (1,538.68 km) |
| Gulbene to Lom | 934.30 mi (1,503.62 km) |
| Gulbene to Lovech | 973.57 mi (1,566.82 km) |
| Gulbene to Lukovit | 971.57 mi (1,563.59 km) |
| Gulbene to Lyaskovets | 972.96 mi (1,565.83 km) |
| Gulbene to Mezdra | 977.58 mi (1,573.26 km) |
| Gulbene to Momchilgrad | 1,081.78 mi (1,740.95 km) |
