| Romeoville to Cockermouth | 3,761.30 mi (6,053.22 km) |
| Romeoville to Colchester | 4,003.47 mi (6,442.97 km) |
| Romeoville to Coleford | 3,872.93 mi (6,232.87 km) |
| Romeoville to Colne | 3,827.93 mi (6,160.45 km) |
| Romeoville to Colwyn Bay | 3,787.51 mi (6,095.41 km) |
| Romeoville to Congleton | 3,846.85 mi (6,190.91 km) |
| Romeoville to Conisbrough | 3,874.17 mi (6,234.88 km) |
| Romeoville to Connahs Quay | 3,813.74 mi (6,137.62 km) |
| Romeoville to Consett | 3,811.64 mi (6,134.24 km) |
| Romeoville to Conwy | 3,782.91 mi (6,088.01 km) |
| Romeoville to Cookstown | 3,636.95 mi (5,853.10 km) |
| Romeoville to Corby | 3,924.19 mi (6,315.37 km) |
| Romeoville to Corfe Mullen | 3,927.61 mi (6,320.88 km) |
| Romeoville to Corsham | 3,900.44 mi (6,277.16 km) |
| Romeoville to Coseley | 3,870.23 mi (6,228.54 km) |
