| Sulphur to Cadillac (Michigan) | 1,061.36 mi (1,708.10 km) |
| Sulphur to Caguas (Puerto Rico) | 1,903.27 mi (3,063.02 km) |
| Sulphur to Cahokia (Illinois) | 603.68 mi (971.54 km) |
| Sulphur to Calabasas (California) | 1,500.60 mi (2,414.99 km) |
| Sulphur to Caldwell (Idaho) | 1,576.93 mi (2,537.82 km) |
| Sulphur to Caledonia (Wisconsin) | 919.73 mi (1,480.17 km) |
| Sulphur to Calera (Alabama) | 437.13 mi (703.50 km) |
| Sulphur to Calexico (California) | 1,313.34 mi (2,113.62 km) |
| Sulphur to Calhoun (Georgia) | 572.49 mi (921.33 km) |
| Sulphur to California (Maryland) | 1,109.98 mi (1,786.34 km) |
| Sulphur to California City (California) | 1,461.54 mi (2,352.12 km) |
| Sulphur to Callaway (Florida) | 465.81 mi (749.65 km) |
| Sulphur to Calumet City (Illinois) | 850.51 mi (1,368.77 km) |
| Sulphur to Calverton (Maryland) | 1,111.71 mi (1,789.13 km) |
| Sulphur to Camano (Washington) | 1,971.79 mi (3,173.28 km) |
