| Rockville to LaGrange (Georgia) | 606.96 mi (976.81 km) |
| Rockville to Laguna Beach (California) | 2,273.68 mi (3,659.13 km) |
| Rockville to Laguna Hills (California) | 2,269.17 mi (3,651.88 km) |
| Rockville to Laguna Niguel (California) | 2,271.12 mi (3,655.02 km) |
| Rockville to Laguna Woods (California) | 2,270.36 mi (3,653.80 km) |
| Rockville to Lahaina (Hawaii) | 4,773.95 mi (7,682.93 km) |
| Rockville to Lake Arbor (Maryland) | 21.14 mi (34.03 km) |
| Rockville to Lake Barcroft (Virginia) | 16.03 mi (25.80 km) |
| Rockville to Lake Butler (Florida) | 774.11 mi (1,245.81 km) |
| Rockville to Lake Charles (Louisiana) | 1,097.18 mi (1,765.73 km) |
| Rockville to Lake City (Florida) | 688.87 mi (1,108.62 km) |
| Rockville to Lake Elmo (Minnesota) | 903.32 mi (1,453.75 km) |
| Rockville to Lake Elsinore (California) | 2,247.30 mi (3,616.68 km) |
| Rockville to Lake Forest (California) | 2,265.95 mi (3,646.70 km) |
| Rockville to Lake Forest (Illinois) | 601.36 mi (967.79 km) |
