| Hackettstown to Mountain Brook (Alabama) | 828.96 mi (1,334.09 km) |
| Hackettstown to Mountain Home (Arkansas) | 996.21 mi (1,603.24 km) |
| Hackettstown to Mountain Home (Idaho) | 2,083.86 mi (3,353.65 km) |
| Hackettstown to Mountain House (California) | 2,477.03 mi (3,986.40 km) |
| Hackettstown to Mountain Park (Georgia) | 703.28 mi (1,131.82 km) |
| Hackettstown to Mountain Top (Pennsylvania) | 59.52 mi (95.79 km) |
| Hackettstown to Mountain View (California) | 2,513.27 mi (4,044.72 km) |
| Hackettstown to Mountlake Terrace (Washington) | 2,356.89 mi (3,793.05 km) |
| Hackettstown to Mukilteo (Washington) | 2,355.83 mi (3,791.35 km) |
| Hackettstown to Muncie (Indiana) | 556.58 mi (895.73 km) |
| Hackettstown to Mundelein (Illinois) | 687.88 mi (1,107.04 km) |
| Hackettstown to Munhall (Pennsylvania) | 267.99 mi (431.29 km) |
| Hackettstown to Munster (Indiana) | 660.24 mi (1,062.55 km) |
| Hackettstown to Murfreesboro (Tennessee) | 715.88 mi (1,152.09 km) |
| Hackettstown to Murphy (Texas) | 1,314.57 mi (2,115.60 km) |
