| Hackettstown to Oxford (Alabama) | 786.62 mi (1,265.95 km) |
| Hackettstown to Oxford (Mississippi) | 919.78 mi (1,480.25 km) |
| Hackettstown to Oxford (Ohio) | 531.52 mi (855.40 km) |
| Hackettstown to Oxnard (California) | 2,447.02 mi (3,938.09 km) |
| Hackettstown to Oxon Hill (Maryland) | 182.61 mi (293.88 km) |
| Hackettstown to Ozark (Alabama) | 885.49 mi (1,425.06 km) |
| Hackettstown to Ozark (Missouri) | 1,020.67 mi (1,642.61 km) |
| Hackettstown to Pace (Florida) | 987.55 mi (1,589.31 km) |
| Hackettstown to Pacific Grove (California) | 2,524.69 mi (4,063.10 km) |
| Hackettstown to Pacifica (California) | 2,528.65 mi (4,069.47 km) |
| Hackettstown to Paducah (Kentucky) | 785.99 mi (1,264.93 km) |
| Hackettstown to Pahrump (Nevada) | 2,227.26 mi (3,584.43 km) |
| Hackettstown to Painesville (Ohio) | 339.00 mi (545.56 km) |
| Hackettstown to Palatine (Illinois) | 688.96 mi (1,108.77 km) |
| Hackettstown to Palatka (Florida) | 864.43 mi (1,391.17 km) |
