| Mentor to Red Bank (New Jersey) | 389.97 mi (627.60 km) |
| Mentor to Red Bank (Tennessee) | 502.36 mi (808.47 km) |
| Mentor to Red Bluff (California) | 2,117.63 mi (3,408.00 km) |
| Mentor to Red Hill (South Carolina) | 561.14 mi (903.07 km) |
| Mentor to Red Oak (Texas) | 1,058.44 mi (1,703.39 km) |
| Mentor to Red Wing (Minnesota) | 601.62 mi (968.21 km) |
| Mentor to Redan (Georgia) | 570.53 mi (918.17 km) |
| Mentor to Redding (California) | 2,116.29 mi (3,405.83 km) |
| Mentor to Redland (Maryland) | 282.35 mi (454.40 km) |
| Mentor to Redlands (California) | 2,008.70 mi (3,232.69 km) |
| Mentor to Redmond (Oregon) | 2,002.22 mi (3,222.26 km) |
| Mentor to Redmond (Washington) | 2,021.18 mi (3,252.78 km) |
| Mentor to Redondo Beach (California) | 2,076.65 mi (3,342.05 km) |
| Mentor to Redwood City (California) | 2,175.48 mi (3,501.10 km) |
| Mentor to Reedley (California) | 2,055.13 mi (3,307.42 km) |
