| Round Rock to El Segundo (California) | 1,232.33 mi (1,983.25 km) |
| Round Rock to El Sobrante (California) | 1,178.41 mi (1,896.47 km) |
| Round Rock to Eldersburg (Maryland) | 1,318.98 mi (2,122.69 km) |
| Round Rock to Elfers (Florida) | 913.01 mi (1,469.34 km) |
| Round Rock to Elgin (Illinois) | 949.01 mi (1,527.28 km) |
| Round Rock to Elizabeth (New Jersey) | 1,486.61 mi (2,392.46 km) |
| Round Rock to Elizabeth City (North Carolina) | 1,295.28 mi (2,084.56 km) |
| Round Rock to Elizabethton (Tennessee) | 974.38 mi (1,568.11 km) |
| Round Rock to Elizabethtown (Kentucky) | 835.78 mi (1,345.06 km) |
| Round Rock to Elizabethtown (Pennsylvania) | 1,355.84 mi (2,182.01 km) |
| Round Rock to Elk City (Oklahoma) | 350.98 mi (564.85 km) |
| Round Rock to Elk Grove (California) | 1,451.62 mi (2,336.16 km) |
| Round Rock to Elk Grove Village (Illinois) | 957.40 mi (1,540.79 km) |
| Round Rock to Elk Plain (Washington) | 1,739.28 mi (2,799.10 km) |
| Round Rock to Elk River (Minnesota) | 1,046.59 mi (1,684.33 km) |
