| Romeoville to Busto Arsizio | 4,539.61 mi (7,305.80 km) |
| Romeoville to Busto Garolfo | 4,543.56 mi (7,312.16 km) |
| Romeoville to Cabras | 4,759.51 mi (7,659.69 km) |
| Romeoville to Cadelbosco di Sopra | 4,642.80 mi (7,471.87 km) |
| Romeoville to Cadoneghe | 4,666.36 mi (7,509.78 km) |
| Romeoville to Cagli | 4,774.58 mi (7,683.95 km) |
| Romeoville to Cagliari | 4,813.60 mi (7,746.74 km) |
| Romeoville to Cairo Montenotte | 4,565.08 mi (7,346.79 km) |
| Romeoville to Caivano | 4,953.17 mi (7,971.35 km) |
| Romeoville to Calcinaia | 4,688.42 mi (7,545.29 km) |
| Romeoville to Calcinato | 4,607.08 mi (7,414.38 km) |
| Romeoville to Calderara di Reno | 4,677.29 mi (7,527.37 km) |
| Romeoville to Caldogno | 4,643.16 mi (7,472.44 km) |
| Romeoville to Calenzano | 4,702.61 mi (7,568.12 km) |
| Romeoville to Calolziocorte | 4,554.85 mi (7,330.33 km) |
