| Grottammare to Karlovo | 554.66 mi (892.63 km) |
| Grottammare to Karnobat | 664.66 mi (1,069.67 km) |
| Grottammare to Kavarna | 728.27 mi (1,172.04 km) |
| Grottammare to Kazanlak | 584.81 mi (941.17 km) |
| Grottammare to Knezha | 515.13 mi (829.02 km) |
| Grottammare to Kostinbrod | 473.17 mi (761.49 km) |
| Grottammare to Kozloduy | 498.20 mi (801.77 km) |
| Grottammare to Kyustendil | 450.63 mi (725.21 km) |
| Grottammare to Levski | 567.88 mi (913.91 km) |
| Grottammare to Lom | 473.68 mi (762.32 km) |
| Grottammare to Lovech | 547.49 mi (881.10 km) |
| Grottammare to Lukovit | 519.59 mi (836.20 km) |
| Grottammare to Lyaskovets | 597.96 mi (962.32 km) |
| Grottammare to Mezdra | 496.21 mi (798.58 km) |
| Grottammare to Momchilgrad | 598.66 mi (963.45 km) |
