| Romeoville to Corato | 5,027.77 mi (8,091.41 km) |
| Romeoville to Corbetta | 4,548.00 mi (7,319.31 km) |
| Romeoville to Corciano | 4,777.88 mi (7,689.26 km) |
| Romeoville to Cordenons | 4,673.42 mi (7,521.15 km) |
| Romeoville to Cori | 4,867.05 mi (7,832.76 km) |
| Romeoville to Coriano | 4,754.85 mi (7,652.19 km) |
| Romeoville to Corigliano Calabro | 5,102.60 mi (8,211.83 km) |
| Romeoville to Corleone | 5,051.03 mi (8,128.84 km) |
| Romeoville to Cormano | 4,554.49 mi (7,329.74 km) |
| Romeoville to Cornaredo | 4,551.26 mi (7,324.54 km) |
| Romeoville to Cornate d'Adda | 4,562.22 mi (7,342.18 km) |
| Romeoville to Cornedo Vicentino | 4,636.88 mi (7,462.34 km) |
| Romeoville to Correggio | 4,649.81 mi (7,483.15 km) |
| Romeoville to Corridonia | 4,821.55 mi (7,759.53 km) |
| Romeoville to Corsico | 4,557.23 mi (7,334.15 km) |
