| Lanham to Romeoville (Illinois) | 620.72 mi (998.96 km) |
| Lanham to Romulus (Michigan) | 409.62 mi (659.23 km) |
| Lanham to Ronkonkoma (New York) | 234.57 mi (377.51 km) |
| Lanham to Roosevelt (New York) | 209.70 mi (337.48 km) |
| Lanham to Rosamond (California) | 2,283.38 mi (3,674.75 km) |
| Lanham to Rosaryville (Maryland) | 13.49 mi (21.70 km) |
| Lanham to Roscoe (Illinois) | 680.03 mi (1,094.40 km) |
| Lanham to Rose Hill (Virginia) | 18.74 mi (30.16 km) |
| Lanham to Roseburg (Oregon) | 2,408.36 mi (3,875.88 km) |
| Lanham to Rosedale (California) | 2,324.31 mi (3,740.62 km) |
| Lanham to Rosedale (Maryland) | 30.89 mi (49.72 km) |
| Lanham to Roselle (Illinois) | 626.15 mi (1,007.68 km) |
| Lanham to Roselle (New Jersey) | 180.07 mi (289.79 km) |
| Lanham to Roselle Park (New Jersey) | 180.36 mi (290.26 km) |
| Lanham to Rosemead (California) | 2,295.18 mi (3,693.74 km) |
