| East Islip to Robertsville (New Jersey) | 63.96 mi (102.94 km) |
| East Islip to Robinson (Texas) | 1,475.54 mi (2,374.66 km) |
| East Islip to Robstown (Texas) | 1,650.29 mi (2,655.88 km) |
| East Islip to Rochester (Michigan) | 529.62 mi (852.34 km) |
| East Islip to Rochester (Minnesota) | 1,008.10 mi (1,622.38 km) |
| East Islip to Rochester (New Hampshire) | 210.84 mi (339.32 km) |
| East Islip to Rochester (New York) | 283.28 mi (455.89 km) |
| East Islip to Rochester Hills (Michigan) | 531.14 mi (854.78 km) |
| East Islip to Rock Hill (South Carolina) | 584.88 mi (941.27 km) |
| East Islip to Rock Island (Illinois) | 905.69 mi (1,457.57 km) |
| East Islip to Rock Springs (Wyoming) | 1,861.68 mi (2,996.09 km) |
| East Islip to Rockford (Illinois) | 827.27 mi (1,331.37 km) |
| East Islip to Rockledge (Florida) | 957.87 mi (1,541.54 km) |
| East Islip to Rocklin (California) | 2,523.82 mi (4,061.70 km) |
| East Islip to Rockport (Texas) | 1,611.77 mi (2,593.90 km) |
