| Rockville to Laurinburg (North Carolina) | 325.04 mi (523.11 km) |
| Rockville to Lawndale (California) | 2,296.73 mi (3,696.22 km) |
| Rockville to Lawrence (Indiana) | 474.11 mi (763.00 km) |
| Rockville to Lawrence (Kansas) | 970.50 mi (1,561.86 km) |
| Rockville to Lawrence (Massachusetts) | 400.34 mi (644.29 km) |
| Rockville to Lawrenceburg (Kentucky) | 424.71 mi (683.51 km) |
| Rockville to Lawrenceburg (Tennessee) | 619.30 mi (996.67 km) |
| Rockville to Lawrenceville (Georgia) | 519.17 mi (835.53 km) |
| Rockville to Lawton (Oklahoma) | 1,212.38 mi (1,951.14 km) |
| Rockville to Layton (Utah) | 1,833.03 mi (2,949.98 km) |
| Rockville to Le Mars (Iowa) | 1,022.62 mi (1,645.74 km) |
| Rockville to League City (Texas) | 1,217.13 mi (1,958.79 km) |
| Rockville to Lealman (Florida) | 840.53 mi (1,352.71 km) |
| Rockville to Leander (Texas) | 1,309.13 mi (2,106.84 km) |
| Rockville to Leavenworth (Kansas) | 949.96 mi (1,528.81 km) |
