| Grenada to Rockville (Maryland) | 792.24 mi (1,274.99 km) |
| Grenada to Rockville Centre (New York) | 1,006.74 mi (1,620.20 km) |
| Grenada to Rockwall (Texas) | 386.90 mi (622.66 km) |
| Grenada to Rocky Mount (North Carolina) | 696.79 mi (1,121.38 km) |
| Grenada to Rocky Point (New York) | 1,047.86 mi (1,686.37 km) |
| Grenada to Rocky River (Ohio) | 686.34 mi (1,104.56 km) |
| Grenada to Roessleville (New York) | 1,062.39 mi (1,709.75 km) |
| Grenada to Rogers (Arkansas) | 301.53 mi (485.27 km) |
| Grenada to Rogers (Minnesota) | 812.93 mi (1,308.28 km) |
| Grenada to Rohnert Park (California) | 1,853.47 mi (2,982.87 km) |
| Grenada to Rolla (Missouri) | 307.68 mi (495.16 km) |
| Grenada to Rolling Meadows (Illinois) | 581.18 mi (935.32 km) |
| Grenada to Roma (Texas) | 748.29 mi (1,204.26 km) |
| Grenada to Rome (Georgia) | 267.03 mi (429.74 km) |
| Grenada to Rome (New York) | 1,010.12 mi (1,625.64 km) |
