| Grenada to Rosemont (California) | 1,780.95 mi (2,866.16 km) |
| Grenada to Rosemount (Minnesota) | 777.16 mi (1,250.71 km) |
| Grenada to Rosenberg (Texas) | 458.69 mi (738.19 km) |
| Grenada to Roseville (California) | 1,779.32 mi (2,863.54 km) |
| Grenada to Roseville (Michigan) | 708.70 mi (1,140.54 km) |
| Grenada to Roseville (Minnesota) | 796.23 mi (1,281.41 km) |
| Grenada to Rossmoor (California) | 1,618.09 mi (2,604.06 km) |
| Grenada to Rossville (Maryland) | 833.10 mi (1,340.74 km) |
| Grenada to Roswell (Georgia) | 313.65 mi (504.77 km) |
| Grenada to Roswell (New Mexico) | 846.89 mi (1,362.94 km) |
| Grenada to Round Lake (Illinois) | 598.78 mi (963.64 km) |
| Grenada to Round Lake Beach (Illinois) | 601.41 mi (967.88 km) |
| Grenada to Round Rock (Texas) | 511.15 mi (822.61 km) |
| Grenada to Rowland Heights (California) | 1,605.64 mi (2,584.03 km) |
| Grenada to Rowlett (Texas) | 393.28 mi (632.92 km) |
