| Rickmansworth to Caguas (Puerto Rico) | 4,195.32 mi (6,751.71 km) |
| Rickmansworth to Cahokia (Illinois) | 4,185.52 mi (6,735.94 km) |
| Rickmansworth to Calabasas (California) | 5,432.34 mi (8,742.50 km) |
| Rickmansworth to Caldwell (Idaho) | 4,832.61 mi (7,777.33 km) |
| Rickmansworth to Caledonia (Wisconsin) | 3,897.22 mi (6,271.96 km) |
| Rickmansworth to Calera (Alabama) | 4,316.20 mi (6,946.26 km) |
| Rickmansworth to Calexico (California) | 5,411.40 mi (8,708.80 km) |
| Rickmansworth to Calhoun (Georgia) | 4,176.19 mi (6,720.93 km) |
| Rickmansworth to California (Maryland) | 3,653.41 mi (5,879.60 km) |
| Rickmansworth to California City (California) | 5,348.57 mi (8,607.70 km) |
| Rickmansworth to Callaway (Florida) | 4,416.63 mi (7,107.88 km) |
| Rickmansworth to Calumet City (Illinois) | 3,939.79 mi (6,340.48 km) |
| Rickmansworth to Calverton (Maryland) | 3,637.61 mi (5,854.18 km) |
| Rickmansworth to Camano (Washington) | 4,738.79 mi (7,626.35 km) |
| Rickmansworth to Camarillo (California) | 5,438.99 mi (8,753.21 km) |
