| Alpena to Romeoville (Illinois) | 333.60 mi (536.88 km) |
| Alpena to Romulus (Michigan) | 196.97 mi (317.00 km) |
| Alpena to Ronkonkoma (New York) | 598.76 mi (963.61 km) |
| Alpena to Roosevelt (New York) | 583.54 mi (939.12 km) |
| Alpena to Rosamond (California) | 1,953.63 mi (3,144.07 km) |
| Alpena to Rosaryville (Maryland) | 552.30 mi (888.84 km) |
| Alpena to Roscoe (Illinois) | 332.62 mi (535.31 km) |
| Alpena to Rose Hill (Virginia) | 542.40 mi (872.91 km) |
| Alpena to Roseburg (Oregon) | 1,962.70 mi (3,158.67 km) |
| Alpena to Rosedale (California) | 1,982.75 mi (3,190.92 km) |
| Alpena to Rosedale (Maryland) | 532.11 mi (856.35 km) |
| Alpena to Roselle (Illinois) | 315.88 mi (508.35 km) |
| Alpena to Roselle (New Jersey) | 555.77 mi (894.42 km) |
| Alpena to Roselle Park (New Jersey) | 554.97 mi (893.13 km) |
| Alpena to Rosemead (California) | 1,976.73 mi (3,181.23 km) |
