| Round Rock to Effingham (Illinois) | 786.33 mi (1,265.48 km) |
| Round Rock to Eggertsville (New York) | 1,346.73 mi (2,167.36 km) |
| Round Rock to Egypt Lake-Leto (Florida) | 929.12 mi (1,495.27 km) |
| Round Rock to El Cajon (California) | 1,143.97 mi (1,841.04 km) |
| Round Rock to El Campo (Texas) | 123.94 mi (199.46 km) |
| Round Rock to El Centro (California) | 1,062.67 mi (1,710.20 km) |
| Round Rock to El Cerrito (California) | 1,491.93 mi (2,401.02 km) |
| Round Rock to El Dorado (Arkansas) | 347.29 mi (558.91 km) |
| Round Rock to El Dorado (Kansas) | 506.05 mi (814.40 km) |
| Round Rock to El Dorado Hills (California) | 1,438.91 mi (2,315.70 km) |
| Round Rock to El Mirage (Arizona) | 883.46 mi (1,421.79 km) |
| Round Rock to El Monte (California) | 1,212.15 mi (1,950.77 km) |
| Round Rock to El Paso (Texas) | 525.94 mi (846.42 km) |
| Round Rock to El Paso de Robles (California) | 1,373.54 mi (2,210.49 km) |
| Round Rock to El Reno (Oklahoma) | 347.01 mi (558.45 km) |
