| Castellabate to Karlovo | 535.39 mi (861.63 km) |
| Castellabate to Karnobat | 643.23 mi (1,035.19 km) |
| Castellabate to Kavarna | 721.31 mi (1,160.84 km) |
| Castellabate to Kazanlak | 564.22 mi (908.02 km) |
| Castellabate to Knezha | 519.31 mi (835.74 km) |
| Castellabate to Kostinbrod | 461.64 mi (742.94 km) |
| Castellabate to Kozloduy | 511.17 mi (822.65 km) |
| Castellabate to Kyustendil | 424.42 mi (683.03 km) |
| Castellabate to Levski | 565.45 mi (910.01 km) |
| Castellabate to Lom | 490.28 mi (789.02 km) |
| Castellabate to Lovech | 540.52 mi (869.89 km) |
| Castellabate to Lukovit | 515.76 mi (830.04 km) |
| Castellabate to Lyaskovets | 588.07 mi (946.40 km) |
| Castellabate to Mezdra | 492.51 mi (792.62 km) |
| Castellabate to Momchilgrad | 552.89 mi (889.80 km) |
