| Glenmont to Robertsville (New Jersey) | 170.60 mi (274.55 km) |
| Glenmont to Robinson (Texas) | 1,245.22 mi (2,003.99 km) |
| Glenmont to Robstown (Texas) | 1,416.24 mi (2,279.22 km) |
| Glenmont to Rochester (Michigan) | 403.68 mi (649.66 km) |
| Glenmont to Rochester (Minnesota) | 866.35 mi (1,394.25 km) |
| Glenmont to Rochester (New Hampshire) | 429.83 mi (691.75 km) |
| Glenmont to Rochester (New York) | 284.70 mi (458.19 km) |
| Glenmont to Rochester Hills (Michigan) | 404.28 mi (650.63 km) |
| Glenmont to Rock Hill (South Carolina) | 359.80 mi (579.05 km) |
| Glenmont to Rock Island (Illinois) | 731.78 mi (1,177.68 km) |
| Glenmont to Rock Springs (Wyoming) | 1,693.71 mi (2,725.76 km) |
| Glenmont to Rockford (Illinois) | 666.56 mi (1,072.73 km) |
| Glenmont to Rockledge (Florida) | 772.20 mi (1,242.74 km) |
| Glenmont to Rocklin (California) | 2,351.53 mi (3,784.42 km) |
| Glenmont to Rockport (Texas) | 1,377.64 mi (2,217.10 km) |
