| Bound Brook to Karlovo | 4,803.59 mi (7,730.62 km) |
| Bound Brook to Karnobat | 4,891.86 mi (7,872.69 km) |
| Bound Brook to Kavarna | 4,911.21 mi (7,903.83 km) |
| Bound Brook to Kazanlak | 4,828.77 mi (7,771.15 km) |
| Bound Brook to Knezha | 4,739.00 mi (7,626.68 km) |
| Bound Brook to Kostinbrod | 4,731.53 mi (7,614.67 km) |
| Bound Brook to Kozloduy | 4,713.33 mi (7,585.37 km) |
| Bound Brook to Kyustendil | 4,731.18 mi (7,614.11 km) |
| Bound Brook to Levski | 4,786.82 mi (7,703.64 km) |
| Bound Brook to Lom | 4,691.57 mi (7,550.35 km) |
| Bound Brook to Lovech | 4,779.63 mi (7,692.07 km) |
| Bound Brook to Lukovit | 4,754.65 mi (7,651.86 km) |
| Bound Brook to Lyaskovets | 4,821.36 mi (7,759.24 km) |
| Bound Brook to Mezdra | 4,737.72 mi (7,624.63 km) |
| Bound Brook to Momchilgrad | 4,874.84 mi (7,845.30 km) |
