| Lanham to Rockville (Maryland) | 18.79 mi (30.24 km) |
| Lanham to Rockville Centre (New York) | 206.73 mi (332.70 km) |
| Lanham to Rockwall (Texas) | 1,170.09 mi (1,883.08 km) |
| Lanham to Rocky Mount (North Carolina) | 213.45 mi (343.51 km) |
| Lanham to Rocky Point (New York) | 247.74 mi (398.70 km) |
| Lanham to Rocky River (Ohio) | 316.01 mi (508.57 km) |
| Lanham to Roessleville (New York) | 303.18 mi (487.91 km) |
| Lanham to Rogers (Arkansas) | 963.05 mi (1,549.87 km) |
| Lanham to Rogers (Minnesota) | 957.52 mi (1,540.98 km) |
| Lanham to Rohnert Park (California) | 2,447.76 mi (3,939.29 km) |
| Lanham to Rolla (Missouri) | 809.34 mi (1,302.51 km) |
| Lanham to Rolling Meadows (Illinois) | 624.94 mi (1,005.74 km) |
| Lanham to Roma (Texas) | 1,546.43 mi (2,488.73 km) |
| Lanham to Rome (Georgia) | 564.77 mi (908.91 km) |
| Lanham to Rome (New York) | 302.89 mi (487.45 km) |
