| San Felice Circeo to Karlovo | 609.22 mi (980.44 km) |
| San Felice Circeo to Karnobat | 719.49 mi (1,157.90 km) |
| San Felice Circeo to Kavarna | 791.77 mi (1,274.23 km) |
| San Felice Circeo to Kazanlak | 639.09 mi (1,028.52 km) |
| San Felice Circeo to Knezha | 581.82 mi (936.36 km) |
| San Felice Circeo to Kostinbrod | 530.48 mi (853.73 km) |
| San Felice Circeo to Kozloduy | 569.21 mi (916.05 km) |
| San Felice Circeo to Kyustendil | 499.15 mi (803.31 km) |
| San Felice Circeo to Levski | 631.92 mi (1,016.98 km) |
| San Felice Circeo to Lom | 546.08 mi (878.84 km) |
| San Felice Circeo to Lovech | 608.75 mi (979.68 km) |
| San Felice Circeo to Lukovit | 582.07 mi (936.75 km) |
| San Felice Circeo to Lyaskovets | 658.38 mi (1,059.56 km) |
| San Felice Circeo to Mezdra | 558.31 mi (898.51 km) |
| San Felice Circeo to Momchilgrad | 638.52 mi (1,027.60 km) |
