| Round Rock to Lewiston (Idaho) | 1,507.00 mi (2,425.28 km) |
| Round Rock to Lewiston (Maine) | 1,765.21 mi (2,840.84 km) |
| Round Rock to Lewisville (North Carolina) | 1,065.87 mi (1,715.36 km) |
| Round Rock to Lewisville (Texas) | 178.56 mi (287.37 km) |
| Round Rock to Lexington (Kentucky) | 913.90 mi (1,470.77 km) |
| Round Rock to Lexington (Nebraska) | 717.78 mi (1,155.16 km) |
| Round Rock to Lexington (North Carolina) | 1,068.27 mi (1,719.21 km) |
| Round Rock to Lexington (South Carolina) | 988.91 mi (1,591.49 km) |
| Round Rock to Lexington Park (Maryland) | 1,318.45 mi (2,121.84 km) |
| Round Rock to Liberal (Kansas) | 487.83 mi (785.09 km) |
| Round Rock to Liberty (Missouri) | 629.31 mi (1,012.78 km) |
| Round Rock to Liberty Lake (Washington) | 1,568.69 mi (2,524.56 km) |
| Round Rock to Liberty Triangle (Florida) | 930.69 mi (1,497.81 km) |
| Round Rock to Libertyville (Illinois) | 973.68 mi (1,566.99 km) |
| Round Rock to Lighthouse Point (Florida) | 1,106.39 mi (1,780.55 km) |
