| Hackettstown to Kanjiza | 4,474.23 mi (7,200.58 km) |
| Hackettstown to Kikinda | 4,499.16 mi (7,240.70 km) |
| Hackettstown to Kladovo | 4,633.82 mi (7,457.42 km) |
| Hackettstown to Knic | 4,584.59 mi (7,378.18 km) |
| Hackettstown to Knjazevac | 4,671.22 mi (7,517.60 km) |
| Hackettstown to Koceljeva | 4,525.78 mi (7,283.53 km) |
| Hackettstown to Kosjeric | 4,548.54 mi (7,320.17 km) |
| Hackettstown to Kovacica | 4,533.97 mi (7,296.71 km) |
| Hackettstown to Kovin | 4,562.02 mi (7,341.87 km) |
| Hackettstown to Kragujevac | 4,589.84 mi (7,386.64 km) |
| Hackettstown to Kraljevo | 4,590.99 mi (7,388.48 km) |
| Hackettstown to Krupanj | 4,511.77 mi (7,260.99 km) |
| Hackettstown to Krusevac | 4,622.74 mi (7,439.58 km) |
| Hackettstown to Kucevo | 4,600.81 mi (7,404.29 km) |
| Hackettstown to Kula | 4,471.30 mi (7,195.86 km) |
