| Hackettstown to Kothen | 3,958.71 mi (6,370.93 km) |
| Hackettstown to Kranenburg | 3,727.45 mi (5,998.74 km) |
| Hackettstown to Krefeld | 3,761.84 mi (6,054.10 km) |
| Hackettstown to Kressbronn am Bodensee | 3,995.06 mi (6,429.43 km) |
| Hackettstown to Kreuzau | 3,774.87 mi (6,075.07 km) |
| Hackettstown to Kreuztal | 3,827.58 mi (6,159.90 km) |
| Hackettstown to Kriftel | 3,873.04 mi (6,233.06 km) |
| Hackettstown to Kronach | 3,982.20 mi (6,408.73 km) |
| Hackettstown to Kronberg | 3,871.43 mi (6,230.47 km) |
| Hackettstown to Kronshagen | 3,814.65 mi (6,139.09 km) |
| Hackettstown to Krumbach | 4,005.95 mi (6,446.95 km) |
| Hackettstown to Kulmbach | 3,990.75 mi (6,422.48 km) |
| Hackettstown to Kummersbruck | 4,030.16 mi (6,485.92 km) |
| Hackettstown to Kunzell | 3,909.08 mi (6,291.05 km) |
| Hackettstown to Kunzelsau | 3,946.00 mi (6,350.48 km) |
