| East Chicago to Robertsville (New Jersey) | 691.56 mi (1,112.96 km) |
| East Chicago to Robinson (Texas) | 884.27 mi (1,423.10 km) |
| East Chicago to Robstown (Texas) | 1,117.29 mi (1,798.10 km) |
| East Chicago to Rochester (Michigan) | 233.29 mi (375.44 km) |
| East Chicago to Rochester (Minnesota) | 302.52 mi (486.86 km) |
| East Chicago to Rochester (New Hampshire) | 845.97 mi (1,361.45 km) |
| East Chicago to Rochester (New York) | 512.47 mi (824.75 km) |
| East Chicago to Rochester Hills (Michigan) | 231.08 mi (371.89 km) |
| East Chicago to Rock Hill (South Carolina) | 579.47 mi (932.57 km) |
| East Chicago to Rock Island (Illinois) | 162.18 mi (261.01 km) |
| East Chicago to Rock Springs (Wyoming) | 1,121.26 mi (1,804.50 km) |
| East Chicago to Rockford (Illinois) | 92.91 mi (149.52 km) |
| East Chicago to Rockledge (Florida) | 995.40 mi (1,601.94 km) |
| East Chicago to Rocklin (California) | 1,782.00 mi (2,867.85 km) |
| East Chicago to Rockport (Texas) | 1,085.87 mi (1,747.53 km) |
