| Bois-Guillaume to Karlovo | 1,223.27 mi (1,968.66 km) |
| Bois-Guillaume to Karnobat | 1,319.06 mi (2,122.83 km) |
| Bois-Guillaume to Kavarna | 1,352.34 mi (2,176.37 km) |
| Bois-Guillaume to Kazanlak | 1,250.12 mi (2,011.87 km) |
| Bois-Guillaume to Knezha | 1,162.13 mi (1,870.27 km) |
| Bois-Guillaume to Kostinbrod | 1,147.94 mi (1,847.42 km) |
| Bois-Guillaume to Kozloduy | 1,137.41 mi (1,830.49 km) |
| Bois-Guillaume to Kyustendil | 1,144.58 mi (1,842.02 km) |
| Bois-Guillaume to Levski | 1,212.74 mi (1,951.72 km) |
| Bois-Guillaume to Lom | 1,114.24 mi (1,793.20 km) |
| Bois-Guillaume to Lovech | 1,202.26 mi (1,934.85 km) |
| Bois-Guillaume to Lukovit | 1,175.91 mi (1,892.44 km) |
| Bois-Guillaume to Lyaskovets | 1,247.36 mi (2,007.44 km) |
| Bois-Guillaume to Mezdra | 1,157.22 mi (1,862.37 km) |
| Bois-Guillaume to Momchilgrad | 1,290.54 mi (2,076.92 km) |
