| Mentor to Rosemont (California) | 2,106.53 mi (3,390.13 km) |
| Mentor to Rosemount (Minnesota) | 626.57 mi (1,008.36 km) |
| Mentor to Rosenberg (Texas) | 1,165.55 mi (1,875.78 km) |
| Mentor to Roseville (California) | 2,099.79 mi (3,379.28 km) |
| Mentor to Roseville (Michigan) | 99.64 mi (160.36 km) |
| Mentor to Roseville (Minnesota) | 635.94 mi (1,023.44 km) |
| Mentor to Rossmoor (California) | 2,063.49 mi (3,320.87 km) |
| Mentor to Rossville (Maryland) | 301.76 mi (485.63 km) |
| Mentor to Roswell (Georgia) | 553.47 mi (890.72 km) |
| Mentor to Roswell (New Mexico) | 1,388.89 mi (2,235.20 km) |
| Mentor to Round Lake (Illinois) | 350.34 mi (563.82 km) |
| Mentor to Round Lake Beach (Illinois) | 349.31 mi (562.16 km) |
| Mentor to Round Rock (Texas) | 1,190.27 mi (1,915.55 km) |
| Mentor to Rowland Heights (California) | 2,048.19 mi (3,296.25 km) |
| Mentor to Rowlett (Texas) | 1,030.18 mi (1,657.92 km) |
