| River Grove to Romeoville (Illinois) | 24.30 mi (39.10 km) |
| River Grove to Romulus (Michigan) | 230.25 mi (370.56 km) |
| River Grove to Ronkonkoma (New York) | 765.94 mi (1,232.67 km) |
| River Grove to Roosevelt (New York) | 743.98 mi (1,197.32 km) |
| River Grove to Rosamond (California) | 1,705.63 mi (2,744.95 km) |
| River Grove to Rosaryville (Maryland) | 618.96 mi (996.11 km) |
| River Grove to Roscoe (Illinois) | 69.22 mi (111.40 km) |
| River Grove to Rose Hill (Virginia) | 604.54 mi (972.92 km) |
| River Grove to Roseburg (Oregon) | 1,795.60 mi (2,889.75 km) |
| River Grove to Rosedale (California) | 1,740.96 mi (2,801.81 km) |
| River Grove to Rosedale (Maryland) | 620.09 mi (997.95 km) |
| River Grove to Roselle (Illinois) | 13.34 mi (21.47 km) |
| River Grove to Roselle (New Jersey) | 709.61 mi (1,142.01 km) |
| River Grove to Roselle Park (New Jersey) | 709.10 mi (1,141.18 km) |
| River Grove to Rosemead (California) | 1,723.42 mi (2,773.58 km) |
