| Alpena to Robertsville (New Jersey) | 567.46 mi (913.23 km) |
| Alpena to Robinson (Texas) | 1,195.16 mi (1,923.42 km) |
| Alpena to Robstown (Texas) | 1,427.38 mi (2,297.14 km) |
| Alpena to Rochester (Michigan) | 165.72 mi (266.71 km) |
| Alpena to Rochester (Minnesota) | 450.77 mi (725.44 km) |
| Alpena to Rochester (New Hampshire) | 628.79 mi (1,011.95 km) |
| Alpena to Rochester (New York) | 317.37 mi (510.76 km) |
| Alpena to Rochester Hills (Michigan) | 167.08 mi (268.89 km) |
| Alpena to Rock Hill (South Carolina) | 711.57 mi (1,145.17 km) |
| Alpena to Rock Island (Illinois) | 436.91 mi (703.13 km) |
| Alpena to Rock Springs (Wyoming) | 1,311.91 mi (2,111.32 km) |
| Alpena to Rockford (Illinois) | 341.65 mi (549.84 km) |
| Alpena to Rockledge (Florida) | 1,167.04 mi (1,878.17 km) |
| Alpena to Rocklin (California) | 1,971.83 mi (3,173.35 km) |
| Alpena to Rockport (Texas) | 1,395.44 mi (2,245.74 km) |
