| Cahokia to Cockermouth | 3,989.98 mi (6,421.26 km) |
| Cahokia to Colchester | 4,230.08 mi (6,807.65 km) |
| Cahokia to Coleford | 4,097.85 mi (6,594.86 km) |
| Cahokia to Colne | 4,055.95 mi (6,527.42 km) |
| Cahokia to Colwyn Bay | 4,014.19 mi (6,460.22 km) |
| Cahokia to Congleton | 4,073.92 mi (6,556.33 km) |
| Cahokia to Conisbrough | 4,102.04 mi (6,601.60 km) |
| Cahokia to Connahs Quay | 4,040.56 mi (6,502.65 km) |
| Cahokia to Consett | 4,041.07 mi (6,503.47 km) |
| Cahokia to Conwy | 4,009.53 mi (6,452.71 km) |
| Cahokia to Cookstown | 3,864.51 mi (6,219.34 km) |
| Cahokia to Corby | 4,150.92 mi (6,680.27 km) |
| Cahokia to Corfe Mullen | 4,151.27 mi (6,680.83 km) |
| Cahokia to Corsham | 4,125.03 mi (6,638.60 km) |
| Cahokia to Coseley | 4,096.49 mi (6,592.67 km) |
