| Mentor to River Ridge (Louisiana) | 949.82 mi (1,528.59 km) |
| Mentor to Riverbank (California) | 2,104.33 mi (3,386.59 km) |
| Mentor to Riverdale (Georgia) | 585.96 mi (943.01 km) |
| Mentor to Riverdale (Illinois) | 325.13 mi (523.25 km) |
| Mentor to Riverside (California) | 2,023.64 mi (3,256.74 km) |
| Mentor to Riverside (Ohio) | 196.47 mi (316.19 km) |
| Mentor to Riverton (Utah) | 1,588.21 mi (2,555.98 km) |
| Mentor to Riverton (Wyoming) | 1,379.50 mi (2,220.09 km) |
| Mentor to Riverview (Florida) | 959.64 mi (1,544.39 km) |
| Mentor to Riverview (Michigan) | 101.18 mi (162.84 km) |
| Mentor to Riviera Beach (Florida) | 1,032.53 mi (1,661.69 km) |
| Mentor to Riviera Beach (Maryland) | 307.33 mi (494.61 km) |
| Mentor to Roanoke (Virginia) | 313.48 mi (504.50 km) |
| Mentor to Roanoke Rapids (North Carolina) | 412.70 mi (664.18 km) |
| Mentor to Robbinsdale (Minnesota) | 644.50 mi (1,037.22 km) |
