| Round Rock to Keene (New Hampshire) | 1,636.07 mi (2,633.00 km) |
| Round Rock to Keizer (Oregon) | 1,696.61 mi (2,730.43 km) |
| Round Rock to Keller (Texas) | 168.26 mi (270.79 km) |
| Round Rock to Kelso (Washington) | 1,727.98 mi (2,780.92 km) |
| Round Rock to Kemp Mill (Maryland) | 1,306.60 mi (2,102.77 km) |
| Round Rock to Ken Caryl (Colorado) | 753.37 mi (1,212.44 km) |
| Round Rock to Kendale Lakes (Florida) | 1,101.64 mi (1,772.92 km) |
| Round Rock to Kendall (Florida) | 1,105.64 mi (1,779.36 km) |
| Round Rock to Kendall Park (New Jersey) | 1,462.19 mi (2,353.17 km) |
| Round Rock to Kendall West (Florida) | 1,099.89 mi (1,770.10 km) |
| Round Rock to Kenmore (New York) | 1,343.93 mi (2,162.84 km) |
| Round Rock to Kenmore (Washington) | 1,761.29 mi (2,834.52 km) |
| Round Rock to Kenner (Louisiana) | 443.50 mi (713.74 km) |
| Round Rock to Kennesaw (Georgia) | 798.87 mi (1,285.65 km) |
| Round Rock to Kennett (Missouri) | 590.29 mi (949.98 km) |
