| Castelfiorentino to Karlovo | 700.30 mi (1,127.02 km) |
| Castelfiorentino to Karnobat | 809.30 mi (1,302.44 km) |
| Castelfiorentino to Kavarna | 868.64 mi (1,397.94 km) |
| Castelfiorentino to Kazanlak | 730.28 mi (1,175.28 km) |
| Castelfiorentino to Knezha | 656.19 mi (1,056.04 km) |
| Castelfiorentino to Kostinbrod | 618.71 mi (995.72 km) |
| Castelfiorentino to Kozloduy | 637.30 mi (1,025.64 km) |
| Castelfiorentino to Kyustendil | 599.04 mi (964.07 km) |
| Castelfiorentino to Levski | 709.53 mi (1,141.87 km) |
| Castelfiorentino to Lom | 612.46 mi (985.66 km) |
| Castelfiorentino to Lovech | 690.62 mi (1,111.45 km) |
| Castelfiorentino to Lukovit | 662.54 mi (1,066.25 km) |
| Castelfiorentino to Lyaskovets | 740.91 mi (1,192.38 km) |
| Castelfiorentino to Mezdra | 639.62 mi (1,029.37 km) |
| Castelfiorentino to Momchilgrad | 748.03 mi (1,203.84 km) |
