| Romeoville to Candler-McAfee (Georgia) | 584.75 mi (941.06 km) |
| Romeoville to Caño Martin Peña (Puerto Rico) | 2,062.94 mi (3,319.97 km) |
| Romeoville to Cañon City (Colorado) | 930.37 mi (1,497.29 km) |
| Romeoville to Canóvanas (Puerto Rico) | 2,071.99 mi (3,334.55 km) |
| Romeoville to Canton (Georgia) | 546.72 mi (879.87 km) |
| Romeoville to Canton (Illinois) | 125.16 mi (201.43 km) |
| Romeoville to Canton (Mississippi) | 633.17 mi (1,018.99 km) |
| Romeoville to Canton (Ohio) | 354.38 mi (570.32 km) |
| Romeoville to Canyon (Texas) | 876.91 mi (1,411.25 km) |
| Romeoville to Canyon Lake (California) | 1,677.33 mi (2,699.40 km) |
| Romeoville to Canyon Lake (Texas) | 990.53 mi (1,594.11 km) |
| Romeoville to Cape Coral (Florida) | 1,092.01 mi (1,757.42 km) |
| Romeoville to Cape Girardeau (Missouri) | 308.52 mi (496.51 km) |
| Romeoville to Carbondale (Illinois) | 276.66 mi (445.24 km) |
| Romeoville to Carlisle (Pennsylvania) | 577.04 mi (928.66 km) |
