| Round Rock to Lyndon (Kentucky) | 870.32 mi (1,400.64 km) |
| Round Rock to Lynn (Massachusetts) | 1,686.74 mi (2,714.54 km) |
| Round Rock to Lynn Haven (Florida) | 716.84 mi (1,153.64 km) |
| Round Rock to Lynnwood (Washington) | 1,766.33 mi (2,842.63 km) |
| Round Rock to Lynwood (California) | 1,220.95 mi (1,964.93 km) |
| Round Rock to Lyons (Illinois) | 952.20 mi (1,532.43 km) |
| Round Rock to Mableton (Georgia) | 798.35 mi (1,284.82 km) |
| Round Rock to Macedonia (Ohio) | 1,168.58 mi (1,880.65 km) |
| Round Rock to Machesney Park (Illinois) | 947.28 mi (1,524.49 km) |
| Round Rock to Mack (Ohio) | 945.44 mi (1,521.54 km) |
| Round Rock to Macomb (Illinois) | 790.77 mi (1,272.62 km) |
| Round Rock to Macon (Georgia) | 835.64 mi (1,344.82 km) |
| Round Rock to Madera (California) | 1,358.41 mi (2,186.15 km) |
| Round Rock to Madison (Alabama) | 696.65 mi (1,121.16 km) |
| Round Rock to Madison (Indiana) | 898.35 mi (1,445.75 km) |
