| Romeoville to Capodrise | 4,948.75 mi (7,964.24 km) |
| Romeoville to Capoterra | 4,809.92 mi (7,740.83 km) |
| Romeoville to Capriolo | 4,580.99 mi (7,372.39 km) |
| Romeoville to Capua | 4,942.85 mi (7,954.74 km) |
| Romeoville to Capurso | 5,052.63 mi (8,131.42 km) |
| Romeoville to Carate Brianza | 4,546.41 mi (7,316.74 km) |
| Romeoville to Caravaggio | 4,575.30 mi (7,363.23 km) |
| Romeoville to Carbonera | 4,670.07 mi (7,515.75 km) |
| Romeoville to Carbonia | 4,791.17 mi (7,710.65 km) |
| Romeoville to Cardito | 4,953.17 mi (7,971.35 km) |
| Romeoville to Carignano | 4,521.02 mi (7,275.87 km) |
| Romeoville to Carini | 5,032.10 mi (8,098.39 km) |
| Romeoville to Carlentini | 5,146.48 mi (8,282.45 km) |
| Romeoville to Carmagnola | 4,525.02 mi (7,282.32 km) |
| Romeoville to Carmiano | 5,129.17 mi (8,254.60 km) |
