| Rock Springs to Karlovo | 5,951.43 mi (9,577.90 km) |
| Rock Springs to Karnobat | 6,010.51 mi (9,672.97 km) |
| Rock Springs to Kavarna | 5,997.93 mi (9,652.73 km) |
| Rock Springs to Kazanlak | 5,969.15 mi (9,606.42 km) |
| Rock Springs to Knezha | 5,881.90 mi (9,466.00 km) |
| Rock Springs to Kostinbrod | 5,897.31 mi (9,490.80 km) |
| Rock Springs to Kozloduy | 5,855.94 mi (9,424.22 km) |
| Rock Springs to Kyustendil | 5,912.84 mi (9,515.80 km) |
| Rock Springs to Levski | 5,918.16 mi (9,524.36 km) |
| Rock Springs to Lom | 5,839.85 mi (9,398.33 km) |
| Rock Springs to Lovech | 5,920.40 mi (9,527.96 km) |
| Rock Springs to Lukovit | 5,901.56 mi (9,497.64 km) |
| Rock Springs to Lyaskovets | 5,949.41 mi (9,574.65 km) |
| Rock Springs to Mezdra | 5,891.57 mi (9,481.57 km) |
| Rock Springs to Momchilgrad | 6,032.94 mi (9,709.09 km) |
