| South Euclid to Karlovo | 5,036.09 mi (8,104.81 km) |
| South Euclid to Karnobat | 5,118.97 mi (8,238.19 km) |
| South Euclid to Kavarna | 5,131.60 mi (8,258.51 km) |
| South Euclid to Kazanlak | 5,059.92 mi (8,143.16 km) |
| South Euclid to Knezha | 4,969.71 mi (7,997.98 km) |
| South Euclid to Kostinbrod | 4,967.19 mi (7,993.91 km) |
| South Euclid to Kozloduy | 4,943.69 mi (7,956.10 km) |
| South Euclid to Kyustendil | 4,970.32 mi (7,998.96 km) |
| South Euclid to Levski | 5,015.53 mi (8,071.72 km) |
| South Euclid to Lom | 4,922.94 mi (7,922.70 km) |
| South Euclid to Lovech | 5,010.32 mi (8,063.34 km) |
| South Euclid to Lukovit | 4,986.41 mi (8,024.85 km) |
| South Euclid to Lyaskovets | 5,049.74 mi (8,126.77 km) |
| South Euclid to Mezdra | 4,970.83 mi (7,999.77 km) |
| South Euclid to Momchilgrad | 5,110.36 mi (8,224.33 km) |
