| Castle Rock to Cosham | 4,694.09 mi (7,554.41 km) |
| Castle Rock to Costessey | 4,698.33 mi (7,561.24 km) |
| Castle Rock to Cottingham | 4,598.21 mi (7,400.11 km) |
| Castle Rock to Coulsdon | 4,707.12 mi (7,575.38 km) |
| Castle Rock to Coventry | 4,615.75 mi (7,428.34 km) |
| Castle Rock to Cowdenbeath | 4,411.83 mi (7,100.15 km) |
| Castle Rock to Cowes | 4,689.16 mi (7,546.47 km) |
| Castle Rock to Cowley | 4,686.77 mi (7,542.63 km) |
| Castle Rock to Cowley | 4,652.95 mi (7,488.20 km) |
| Castle Rock to Cramlington | 4,508.39 mi (7,255.56 km) |
| Castle Rock to Cranleigh | 4,702.81 mi (7,568.45 km) |
| Castle Rock to Crawley | 4,714.10 mi (7,586.61 km) |
| Castle Rock to Crayford | 4,712.97 mi (7,584.79 km) |
| Castle Rock to Crewe | 4,556.64 mi (7,333.20 km) |
| Castle Rock to Crigglestone | 4,566.53 mi (7,349.12 km) |
