| Hackettstown to Iver | 3,472.72 mi (5,588.80 km) |
| Hackettstown to Ivybridge | 3,355.88 mi (5,400.77 km) |
| Hackettstown to Jarrow | 3,363.90 mi (5,413.67 km) |
| Hackettstown to Johnstone | 3,235.07 mi (5,206.34 km) |
| Hackettstown to Kearsley | 3,356.62 mi (5,401.96 km) |
| Hackettstown to Keighley | 3,368.30 mi (5,420.75 km) |
| Hackettstown to Kempston | 3,460.12 mi (5,568.53 km) |
| Hackettstown to Kendal | 3,327.28 mi (5,354.74 km) |
| Hackettstown to Kenilworth | 3,412.25 mi (5,491.49 km) |
| Hackettstown to Kenley | 3,493.85 mi (5,622.80 km) |
| Hackettstown to Kensington | 3,486.09 mi (5,610.32 km) |
| Hackettstown to Kenton | 3,479.31 mi (5,599.40 km) |
| Hackettstown to Kettering | 3,445.05 mi (5,544.28 km) |
| Hackettstown to Kew Green | 3,483.98 mi (5,606.93 km) |
| Hackettstown to Keynsham | 3,393.66 mi (5,461.57 km) |
