| River Grove to Rosemont (California) | 1,771.78 mi (2,851.41 km) |
| River Grove to Rosemount (Minnesota) | 327.09 mi (526.40 km) |
| River Grove to Rosenberg (Texas) | 964.33 mi (1,551.94 km) |
| River Grove to Roseville (California) | 1,765.18 mi (2,840.78 km) |
| River Grove to Roseville (Michigan) | 253.97 mi (408.73 km) |
| River Grove to Roseville (Minnesota) | 341.47 mi (549.54 km) |
| River Grove to Rossmoor (California) | 1,732.28 mi (2,787.84 km) |
| River Grove to Rossville (Maryland) | 620.95 mi (999.32 km) |
| River Grove to Roswell (Georgia) | 576.81 mi (928.29 km) |
| River Grove to Roswell (New Mexico) | 1,084.60 mi (1,745.50 km) |
| River Grove to Round Lake (Illinois) | 32.05 mi (51.59 km) |
| River Grove to Round Lake Beach (Illinois) | 33.80 mi (54.40 km) |
| River Grove to Round Rock (Texas) | 957.73 mi (1,541.31 km) |
| River Grove to Rowland Heights (California) | 1,716.80 mi (2,762.93 km) |
| River Grove to Rowlett (Texas) | 783.88 mi (1,261.54 km) |
