| Sun Prairie to Cadillac (Michigan) | 204.48 mi (329.07 km) |
| Sun Prairie to Caguas (Puerto Rico) | 2,191.25 mi (3,526.47 km) |
| Sun Prairie to Cahokia (Illinois) | 322.81 mi (519.52 km) |
| Sun Prairie to Calabasas (California) | 1,695.57 mi (2,728.76 km) |
| Sun Prairie to Caldwell (Idaho) | 1,370.46 mi (2,205.53 km) |
| Sun Prairie to Caledonia (Wisconsin) | 73.67 mi (118.57 km) |
| Sun Prairie to Calera (Alabama) | 707.84 mi (1,139.16 km) |
| Sun Prairie to Calexico (California) | 1,594.93 mi (2,566.79 km) |
| Sun Prairie to Calhoun (Georgia) | 643.28 mi (1,035.27 km) |
| Sun Prairie to California (Maryland) | 746.46 mi (1,201.32 km) |
| Sun Prairie to California City (California) | 1,621.43 mi (2,609.43 km) |
| Sun Prairie to Callaway (Florida) | 924.02 mi (1,487.07 km) |
| Sun Prairie to Calumet City (Illinois) | 138.38 mi (222.71 km) |
| Sun Prairie to Calverton (Maryland) | 699.28 mi (1,125.39 km) |
| Sun Prairie to Camano (Washington) | 1,627.55 mi (2,619.29 km) |
