| Round Rock to Chicago Ridge (Illinois) | 947.60 mi (1,525.01 km) |
| Round Rock to Chickasha (Oklahoma) | 312.31 mi (502.62 km) |
| Round Rock to Chico (California) | 1,499.84 mi (2,413.77 km) |
| Round Rock to Chicopee (Massachusetts) | 1,602.75 mi (2,579.37 km) |
| Round Rock to Chillicothe (Ohio) | 1,027.94 mi (1,654.31 km) |
| Round Rock to Chillum (Maryland) | 1,306.94 mi (2,103.32 km) |
| Round Rock to Chino (California) | 1,190.79 mi (1,916.38 km) |
| Round Rock to Chino Hills (California) | 1,193.97 mi (1,921.51 km) |
| Round Rock to Chino Valley (Arizona) | 905.42 mi (1,457.13 km) |
| Round Rock to Chippewa Falls (Wisconsin) | 1,052.08 mi (1,693.17 km) |
| Round Rock to Choctaw (Oklahoma) | 343.01 mi (552.02 km) |
| Round Rock to Chowchilla (California) | 1,369.08 mi (2,203.32 km) |
| Round Rock to Christiansburg (Virginia) | 1,088.71 mi (1,752.11 km) |
| Round Rock to Chubbuck (Idaho) | 1,182.01 mi (1,902.27 km) |
| Round Rock to Chula Vista (California) | 1,146.60 mi (1,845.28 km) |
