| Civitavecchia to Karlovo | 664.36 mi (1,069.18 km) |
| Civitavecchia to Karnobat | 774.93 mi (1,247.13 km) |
| Civitavecchia to Kavarna | 842.26 mi (1,355.49 km) |
| Civitavecchia to Kazanlak | 694.53 mi (1,117.74 km) |
| Civitavecchia to Knezha | 629.58 mi (1,013.21 km) |
| Civitavecchia to Kostinbrod | 583.62 mi (939.24 km) |
| Civitavecchia to Kozloduy | 614.11 mi (988.31 km) |
| Civitavecchia to Kyustendil | 556.90 mi (896.24 km) |
| Civitavecchia to Levski | 681.56 mi (1,096.86 km) |
| Civitavecchia to Lom | 589.95 mi (949.44 km) |
| Civitavecchia to Lovech | 659.99 mi (1,062.15 km) |
| Civitavecchia to Lukovit | 632.45 mi (1,017.82 km) |
| Civitavecchia to Lyaskovets | 710.33 mi (1,143.17 km) |
| Civitavecchia to Mezdra | 608.79 mi (979.76 km) |
| Civitavecchia to Momchilgrad | 701.53 mi (1,129.00 km) |
