| Hackettstown to Pittsburg (Kansas) | 1,088.72 mi (1,752.13 km) |
| Hackettstown to Pittsburgh (Pennsylvania) | 271.49 mi (436.92 km) |
| Hackettstown to Pittsfield (Massachusetts) | 136.80 mi (220.16 km) |
| Hackettstown to Placentia (California) | 2,386.79 mi (3,841.17 km) |
| Hackettstown to Placerville (California) | 2,416.87 mi (3,889.58 km) |
| Hackettstown to Plainfield (Illinois) | 697.51 mi (1,122.54 km) |
| Hackettstown to Plainfield (Indiana) | 613.42 mi (987.21 km) |
| Hackettstown to Plainfield (New Jersey) | 27.07 mi (43.56 km) |
| Hackettstown to Plainview (New York) | 70.89 mi (114.08 km) |
| Hackettstown to Plainview (Texas) | 1,537.12 mi (2,473.76 km) |
| Hackettstown to Plano (Illinois) | 713.20 mi (1,147.79 km) |
| Hackettstown to Plano (Texas) | 1,320.36 mi (2,124.91 km) |
| Hackettstown to Plant City (Florida) | 978.78 mi (1,575.20 km) |
| Hackettstown to Plantation (Florida) | 1,064.13 mi (1,712.55 km) |
| Hackettstown to Platteville (Wisconsin) | 814.93 mi (1,311.50 km) |
