| Hilton Head Island to Karlovo | 5,445.79 mi (8,764.15 km) |
| Hilton Head Island to Karnobat | 5,537.40 mi (8,911.59 km) |
| Hilton Head Island to Kavarna | 5,560.88 mi (8,949.37 km) |
| Hilton Head Island to Kazanlak | 5,471.82 mi (8,806.04 km) |
| Hilton Head Island to Knezha | 5,382.66 mi (8,662.56 km) |
| Hilton Head Island to Kostinbrod | 5,371.76 mi (8,645.01 km) |
| Hilton Head Island to Kozloduy | 5,357.32 mi (8,621.77 km) |
| Hilton Head Island to Kyustendil | 5,368.83 mi (8,640.29 km) |
| Hilton Head Island to Levski | 5,431.66 mi (8,741.42 km) |
| Hilton Head Island to Lom | 5,334.95 mi (8,585.77 km) |
| Hilton Head Island to Lovech | 5,423.16 mi (8,727.74 km) |
| Hilton Head Island to Lukovit | 5,397.53 mi (8,686.49 km) |
| Hilton Head Island to Lyaskovets | 5,466.31 mi (8,797.18 km) |
| Hilton Head Island to Mezdra | 5,379.74 mi (8,657.86 km) |
| Hilton Head Island to Momchilgrad | 5,514.65 mi (8,874.96 km) |
