| Romeoville to Casamassima | 5,057.16 mi (8,138.72 km) |
| Romeoville to Casandrino | 4,951.90 mi (7,969.31 km) |
| Romeoville to Casapulla | 4,947.34 mi (7,961.98 km) |
| Romeoville to Casarano | 5,149.09 mi (8,286.65 km) |
| Romeoville to Casatenovo | 4,554.20 mi (7,329.27 km) |
| Romeoville to Casciana Terme | 4,694.99 mi (7,555.86 km) |
| Romeoville to Cascina | 4,685.76 mi (7,541.01 km) |
| Romeoville to Caselle Torinese | 4,509.20 mi (7,256.85 km) |
| Romeoville to Caserta | 4,949.35 mi (7,965.21 km) |
| Romeoville to Casier | 4,672.11 mi (7,519.03 km) |
| Romeoville to Casorate Primo | 4,557.99 mi (7,335.37 km) |
| Romeoville to Casoria | 4,955.38 mi (7,974.91 km) |
| Romeoville to Cassano al Ionio | 5,086.26 mi (8,185.54 km) |
| Romeoville to Cassano d'Adda | 4,568.90 mi (7,352.94 km) |
| Romeoville to Cassano delle Murge | 5,054.28 mi (8,134.08 km) |
