| Round Rock to Groveton (Virginia) | 1,296.07 mi (2,085.82 km) |
| Round Rock to Grovetown (Georgia) | 927.08 mi (1,491.99 km) |
| Round Rock to Guayama (Puerto Rico) | 2,158.84 mi (3,474.31 km) |
| Round Rock to Guaynabo (Puerto Rico) | 2,144.81 mi (3,451.74 km) |
| Round Rock to Gulf Shores (Alabama) | 593.75 mi (955.55 km) |
| Round Rock to Gulfport (Florida) | 921.96 mi (1,483.74 km) |
| Round Rock to Gulfport (Mississippi) | 511.66 mi (823.43 km) |
| Round Rock to Gunbarrel (Colorado) | 782.45 mi (1,259.24 km) |
| Round Rock to Gurnee (Illinois) | 979.18 mi (1,575.84 km) |
| Round Rock to Guthrie (Oklahoma) | 367.49 mi (591.42 km) |
| Round Rock to Guttenberg (New Jersey) | 1,498.84 mi (2,412.15 km) |
| Round Rock to Guymon (Oklahoma) | 478.93 mi (770.77 km) |
| Round Rock to Hacienda Heights (California) | 1,208.39 mi (1,944.72 km) |
| Round Rock to Hackensack (New Jersey) | 1,499.19 mi (2,412.72 km) |
| Round Rock to Hackettstown (New Jersey) | 1,460.41 mi (2,350.31 km) |
