| Fern Down to Karlovo | 1,375.15 mi (2,213.09 km) |
| Fern Down to Karnobat | 1,468.27 mi (2,362.95 km) |
| Fern Down to Kavarna | 1,497.43 mi (2,409.88 km) |
| Fern Down to Kazanlak | 1,401.34 mi (2,255.24 km) |
| Fern Down to Knezha | 1,312.49 mi (2,112.24 km) |
| Fern Down to Kostinbrod | 1,301.32 mi (2,094.27 km) |
| Fern Down to Kozloduy | 1,287.34 mi (2,071.78 km) |
| Fern Down to Kyustendil | 1,299.90 mi (2,091.99 km) |
| Fern Down to Levski | 1,362.16 mi (2,192.18 km) |
| Fern Down to Lom | 1,264.69 mi (2,035.32 km) |
| Fern Down to Lovech | 1,352.89 mi (2,177.27 km) |
| Fern Down to Lukovit | 1,327.05 mi (2,135.68 km) |
| Fern Down to Lyaskovets | 1,396.83 mi (2,247.97 km) |
| Fern Down to Mezdra | 1,309.10 mi (2,106.79 km) |
| Fern Down to Momchilgrad | 1,444.41 mi (2,324.55 km) |
