| Grays to Robertsville (New Jersey) | 3,508.55 mi (5,646.46 km) |
| Grays to Robinson (Texas) | 4,848.02 mi (7,802.13 km) |
| Grays to Robstown (Texas) | 5,061.39 mi (8,145.52 km) |
| Grays to Rochester (Michigan) | 3,756.15 mi (6,044.93 km) |
| Grays to Rochester (Minnesota) | 4,045.83 mi (6,511.14 km) |
| Grays to Rochester (New Hampshire) | 3,248.45 mi (5,227.88 km) |
| Grays to Rochester (New York) | 3,519.81 mi (5,664.59 km) |
| Grays to Rochester Hills (Michigan) | 3,758.55 mi (6,048.80 km) |
| Grays to Rock Hill (South Carolina) | 4,031.13 mi (6,487.47 km) |
| Grays to Rock Island (Illinois) | 4,096.74 mi (6,593.07 km) |
| Grays to Rock Springs (Wyoming) | 4,745.74 mi (7,637.53 km) |
| Grays to Rockford (Illinois) | 4,002.41 mi (6,441.26 km) |
| Grays to Rockledge (Florida) | 4,342.65 mi (6,988.82 km) |
| Grays to Rocklin (California) | 5,274.73 mi (8,488.86 km) |
| Grays to Rockport (Texas) | 5,025.46 mi (8,087.70 km) |
