| Round Lake to Karlovo | 5,240.04 mi (8,433.04 km) |
| Round Lake to Karnobat | 5,317.39 mi (8,557.51 km) |
| Round Lake to Kavarna | 5,323.60 mi (8,567.51 km) |
| Round Lake to Kazanlak | 5,262.47 mi (8,469.12 km) |
| Round Lake to Knezha | 5,172.33 mi (8,324.07 km) |
| Round Lake to Kostinbrod | 5,174.47 mi (8,327.50 km) |
| Round Lake to Kozloduy | 5,146.13 mi (8,281.89 km) |
| Round Lake to Kyustendil | 5,180.87 mi (8,337.80 km) |
| Round Lake to Levski | 5,216.02 mi (8,394.37 km) |
| Round Lake to Lom | 5,126.43 mi (8,250.20 km) |
| Round Lake to Lovech | 5,212.71 mi (8,389.04 km) |
| Round Lake to Lukovit | 5,189.93 mi (8,352.39 km) |
| Round Lake to Lyaskovets | 5,249.73 mi (8,448.62 km) |
| Round Lake to Mezdra | 5,175.69 mi (8,329.47 km) |
| Round Lake to Momchilgrad | 5,316.75 mi (8,556.49 km) |
