| Rapid City to Cockermouth | 4,162.73 mi (6,699.27 km) |
| Rapid City to Colchester | 4,418.76 mi (7,111.31 km) |
| Rapid City to Coleford | 4,304.88 mi (6,928.03 km) |
| Rapid City to Colne | 4,234.18 mi (6,814.25 km) |
| Rapid City to Colwyn Bay | 4,206.71 mi (6,770.04 km) |
| Rapid City to Congleton | 4,261.39 mi (6,858.04 km) |
| Rapid City to Conisbrough | 4,280.85 mi (6,889.36 km) |
| Rapid City to Connahs Quay | 4,231.13 mi (6,809.35 km) |
| Rapid City to Consett | 4,204.64 mi (6,766.71 km) |
| Rapid City to Conwy | 4,202.75 mi (6,763.68 km) |
| Rapid City to Cookstown | 4,051.63 mi (6,520.46 km) |
| Rapid City to Corby | 4,339.96 mi (6,984.48 km) |
| Rapid City to Corfe Mullen | 4,368.33 mi (7,030.15 km) |
| Rapid City to Corsham | 4,334.54 mi (6,975.77 km) |
| Rapid City to Coseley | 4,291.26 mi (6,906.12 km) |
