| Romeoville to Kennewick (Washington) | 1,567.89 mi (2,523.27 km) |
| Romeoville to Kenosha (Wisconsin) | 66.94 mi (107.73 km) |
| Romeoville to Kent (Ohio) | 350.80 mi (564.56 km) |
| Romeoville to Kent (Washington) | 1,712.49 mi (2,755.99 km) |
| Romeoville to Kentwood (Michigan) | 154.70 mi (248.97 km) |
| Romeoville to Kerman (California) | 1,734.79 mi (2,791.88 km) |
| Romeoville to Kernersville (North Carolina) | 575.43 mi (926.07 km) |
| Romeoville to Kerrville (Texas) | 1,009.76 mi (1,625.05 km) |
| Romeoville to Kettering (Maryland) | 625.21 mi (1,006.18 km) |
| Romeoville to Kettering (Ohio) | 246.46 mi (396.63 km) |
| Romeoville to Kewanee (Illinois) | 98.42 mi (158.39 km) |
| Romeoville to Key Biscayne (Florida) | 1,190.83 mi (1,916.46 km) |
| Romeoville to Key Largo (Florida) | 1,222.57 mi (1,967.54 km) |
| Romeoville to Key West (Florida) | 1,233.80 mi (1,985.61 km) |
| Romeoville to Keystone (Florida) | 982.93 mi (1,581.88 km) |
