| River Grove to Roy (Utah) | 1,248.84 mi (2,009.81 km) |
| River Grove to Royal Kunia (Hawaii) | 4,242.90 mi (6,828.29 km) |
| River Grove to Royal Oak (Michigan) | 243.03 mi (391.11 km) |
| River Grove to Royal Palm Beach (Florida) | 1,136.65 mi (1,829.26 km) |
| River Grove to Royse City (Texas) | 772.80 mi (1,243.70 km) |
| River Grove to Ruskin (Florida) | 1,028.70 mi (1,655.54 km) |
| River Grove to Russellville (Alabama) | 512.62 mi (824.99 km) |
| River Grove to Russellville (Arkansas) | 540.94 mi (870.56 km) |
| River Grove to Ruston (Louisiana) | 700.22 mi (1,126.89 km) |
| River Grove to Rutherford (New Jersey) | 715.31 mi (1,151.17 km) |
| River Grove to Rutland (Vermont) | 761.60 mi (1,225.68 km) |
| River Grove to Sabana Grande (Puerto Rico) | 2,055.11 mi (3,307.38 km) |
| River Grove to Sachse (Texas) | 781.67 mi (1,257.97 km) |
| River Grove to Saco (Maine) | 887.21 mi (1,427.83 km) |
| River Grove to Sacramento (California) | 1,777.16 mi (2,860.06 km) |
