| East Islip to Rockville (Maryland) | 238.96 mi (384.56 km) |
| East Islip to Rockville Centre (New York) | 24.02 mi (38.66 km) |
| East Islip to Rockwall (Texas) | 1,389.15 mi (2,235.62 km) |
| East Islip to Rocky Mount (North Carolina) | 412.94 mi (664.56 km) |
| East Islip to Rocky Point (New York) | 19.55 mi (31.46 km) |
| East Islip to Rocky River (Ohio) | 453.93 mi (730.52 km) |
| East Islip to Roessleville (New York) | 139.78 mi (224.95 km) |
| East Islip to Rogers (Arkansas) | 1,170.42 mi (1,883.60 km) |
| East Islip to Rogers (Minnesota) | 1,072.89 mi (1,726.65 km) |
| East Islip to Rohnert Park (California) | 2,608.11 mi (4,197.34 km) |
| East Islip to Rolla (Missouri) | 1,008.98 mi (1,623.80 km) |
| East Islip to Rolling Meadows (Illinois) | 773.66 mi (1,245.09 km) |
| East Islip to Roma (Texas) | 1,774.37 mi (2,855.57 km) |
| East Islip to Rome (Georgia) | 793.74 mi (1,277.40 km) |
| East Islip to Rome (New York) | 209.38 mi (336.97 km) |
