| Cwmbran to Caguas (Puerto Rico) | 4,087.15 mi (6,577.63 km) |
| Cwmbran to Cahokia (Illinois) | 4,086.08 mi (6,575.90 km) |
| Cwmbran to Calabasas (California) | 5,349.03 mi (8,608.44 km) |
| Cwmbran to Caldwell (Idaho) | 4,755.08 mi (7,652.56 km) |
| Cwmbran to Caledonia (Wisconsin) | 3,799.67 mi (6,114.98 km) |
| Cwmbran to Calera (Alabama) | 4,212.10 mi (6,778.72 km) |
| Cwmbran to Calexico (California) | 5,324.40 mi (8,568.79 km) |
| Cwmbran to Calhoun (Georgia) | 4,072.02 mi (6,553.28 km) |
| Cwmbran to California (Maryland) | 3,548.03 mi (5,710.01 km) |
| Cwmbran to California City (California) | 5,265.32 mi (8,473.72 km) |
| Cwmbran to Callaway (Florida) | 4,310.80 mi (6,937.56 km) |
| Cwmbran to Calumet City (Illinois) | 3,841.17 mi (6,181.77 km) |
| Cwmbran to Calverton (Maryland) | 3,532.79 mi (5,685.47 km) |
| Cwmbran to Camano (Washington) | 4,670.33 mi (7,516.17 km) |
| Cwmbran to Camarillo (California) | 5,356.06 mi (8,619.75 km) |
