| Robertsville to Karlovo | 4,803.59 mi (7,730.62 km) |
| Robertsville to Karnobat | 4,892.22 mi (7,873.27 km) |
| Robertsville to Kavarna | 4,912.04 mi (7,905.16 km) |
| Robertsville to Kazanlak | 4,828.86 mi (7,771.29 km) |
| Robertsville to Knezha | 4,739.14 mi (7,626.91 km) |
| Robertsville to Kostinbrod | 4,731.32 mi (7,614.33 km) |
| Robertsville to Kozloduy | 4,713.50 mi (7,585.65 km) |
| Robertsville to Kyustendil | 4,730.72 mi (7,613.36 km) |
| Robertsville to Levski | 4,787.09 mi (7,704.08 km) |
| Robertsville to Lom | 4,691.68 mi (7,550.52 km) |
| Robertsville to Lovech | 4,779.76 mi (7,692.28 km) |
| Robertsville to Lukovit | 4,754.71 mi (7,651.97 km) |
| Robertsville to Lyaskovets | 4,821.65 mi (7,759.70 km) |
| Robertsville to Mezdra | 4,737.70 mi (7,624.59 km) |
| Robertsville to Momchilgrad | 4,874.61 mi (7,844.93 km) |
