| Rockville to New Brighton (Minnesota) | 918.89 mi (1,478.81 km) |
| Rockville to New Britain (Connecticut) | 291.42 mi (469.00 km) |
| Rockville to New Brunswick (New Jersey) | 173.52 mi (279.25 km) |
| Rockville to New Carrollton (Maryland) | 16.99 mi (27.34 km) |
| Rockville to New Cassel (New York) | 222.72 mi (358.44 km) |
| Rockville to New Castle (Indiana) | 441.56 mi (710.63 km) |
| Rockville to New Castle (Pennsylvania) | 214.31 mi (344.90 km) |
| Rockville to New City (New York) | 220.02 mi (354.08 km) |
| Rockville to New Franklin (Ohio) | 267.51 mi (430.52 km) |
| Rockville to New Haven (Connecticut) | 271.14 mi (436.36 km) |
| Rockville to New Haven (Indiana) | 437.50 mi (704.09 km) |
| Rockville to New Hope (Minnesota) | 926.44 mi (1,490.96 km) |
| Rockville to New Hyde Park (New York) | 216.29 mi (348.08 km) |
| Rockville to New Iberia (Louisiana) | 1,041.75 mi (1,676.54 km) |
| Rockville to New Kensington (Pennsylvania) | 171.91 mi (276.66 km) |
