| Round Rock to Kihei (Hawaii) | 3,683.04 mi (5,927.29 km) |
| Round Rock to Kilgore (Texas) | 209.80 mi (337.63 km) |
| Round Rock to Killeen (Texas) | 38.08 mi (61.29 km) |
| Round Rock to King City (California) | 1,406.06 mi (2,262.84 km) |
| Round Rock to King of Prussia (Pennsylvania) | 1,414.04 mi (2,275.68 km) |
| Round Rock to Kingman (Arizona) | 1,000.94 mi (1,610.85 km) |
| Round Rock to Kings Mountain (North Carolina) | 999.48 mi (1,608.51 km) |
| Round Rock to Kings Park (New York) | 1,538.25 mi (2,475.57 km) |
| Round Rock to Kings Park West (Virginia) | 1,287.34 mi (2,071.77 km) |
| Round Rock to Kingsburg (California) | 1,324.00 mi (2,130.77 km) |
| Round Rock to Kingsland (Georgia) | 946.83 mi (1,523.77 km) |
| Round Rock to Kingsport (Tennessee) | 962.81 mi (1,549.49 km) |
| Round Rock to Kingston (New York) | 1,528.72 mi (2,460.23 km) |
| Round Rock to Kingston (Pennsylvania) | 1,420.80 mi (2,286.56 km) |
| Round Rock to Kingstowne (Virginia) | 1,293.76 mi (2,082.11 km) |
