| Hackettstown to Romeoville (Illinois) | 691.02 mi (1,112.10 km) |
| Hackettstown to Romulus (Michigan) | 451.49 mi (726.60 km) |
| Hackettstown to Ronkonkoma (New York) | 89.00 mi (143.23 km) |
| Hackettstown to Roosevelt (New York) | 66.10 mi (106.38 km) |
| Hackettstown to Rosamond (California) | 2,378.09 mi (3,827.17 km) |
| Hackettstown to Rosaryville (Maryland) | 179.06 mi (288.17 km) |
| Hackettstown to Roscoe (Illinois) | 739.45 mi (1,190.03 km) |
| Hackettstown to Rose Hill (Virginia) | 187.25 mi (301.35 km) |
| Hackettstown to Roseburg (Oregon) | 2,460.39 mi (3,959.61 km) |
| Hackettstown to Rosedale (California) | 2,415.60 mi (3,887.53 km) |
| Hackettstown to Rosedale (Maryland) | 138.01 mi (222.11 km) |
| Hackettstown to Roselle (Illinois) | 690.76 mi (1,111.68 km) |
| Hackettstown to Roselle (New Jersey) | 32.72 mi (52.65 km) |
| Hackettstown to Roselle Park (New Jersey) | 32.03 mi (51.55 km) |
| Hackettstown to Rosemead (California) | 2,393.28 mi (3,851.61 km) |
