| Hackettstown to Ridgeland (Mississippi) | 1,027.58 mi (1,653.73 km) |
| Hackettstown to Ridgewood (New Jersey) | 38.26 mi (61.58 km) |
| Hackettstown to Rifle (Colorado) | 1,730.97 mi (2,785.73 km) |
| Hackettstown to Rincon (Georgia) | 689.61 mi (1,109.82 km) |
| Hackettstown to Ringwood (New Jersey) | 33.61 mi (54.09 km) |
| Hackettstown to Río Grande (Puerto Rico) | 1,641.73 mi (2,642.10 km) |
| Hackettstown to Rio Grande City (Texas) | 1,695.26 mi (2,728.25 km) |
| Hackettstown to Rio Linda (California) | 2,450.73 mi (3,944.07 km) |
| Hackettstown to Rio Rancho (New Mexico) | 1,765.47 mi (2,841.25 km) |
| Hackettstown to Rio Rico (Arizona) | 2,101.03 mi (3,381.29 km) |
| Hackettstown to Ripon (California) | 2,456.37 mi (3,953.15 km) |
| Hackettstown to River Edge (New Jersey) | 41.41 mi (66.65 km) |
| Hackettstown to River Falls (Wisconsin) | 940.81 mi (1,514.08 km) |
| Hackettstown to River Forest (Illinois) | 676.87 mi (1,089.31 km) |
| Hackettstown to River Grove (Illinois) | 677.88 mi (1,090.95 km) |
