| Saint-Gregoire to Karlovo | 1,332.94 mi (2,145.16 km) |
| Saint-Gregoire to Karnobat | 1,433.06 mi (2,306.29 km) |
| Saint-Gregoire to Kavarna | 1,472.45 mi (2,369.67 km) |
| Saint-Gregoire to Kazanlak | 1,360.90 mi (2,190.16 km) |
| Saint-Gregoire to Knezha | 1,275.04 mi (2,051.97 km) |
| Saint-Gregoire to Kostinbrod | 1,255.02 mi (2,019.76 km) |
| Saint-Gregoire to Kozloduy | 1,251.23 mi (2,013.66 km) |
| Saint-Gregoire to Kyustendil | 1,247.17 mi (2,007.13 km) |
| Saint-Gregoire to Levski | 1,326.98 mi (2,135.57 km) |
| Saint-Gregoire to Lom | 1,227.32 mi (1,975.17 km) |
| Saint-Gregoire to Lovech | 1,314.42 mi (2,115.36 km) |
| Saint-Gregoire to Lukovit | 1,287.30 mi (2,071.71 km) |
| Saint-Gregoire to Lyaskovets | 1,361.31 mi (2,190.82 km) |
| Saint-Gregoire to Mezdra | 1,267.34 mi (2,039.58 km) |
| Saint-Gregoire to Momchilgrad | 1,395.65 mi (2,246.09 km) |
