| Witham to Caño Martin Peña (Puerto Rico) | 4,233.56 mi (6,813.26 km) |
| Witham to Cañon City (Colorado) | 4,776.52 mi (7,687.06 km) |
| Witham to Canóvanas (Puerto Rico) | 4,230.45 mi (6,808.24 km) |
| Witham to Canton (Georgia) | 4,210.84 mi (6,776.70 km) |
| Witham to Canton (Illinois) | 4,120.61 mi (6,631.49 km) |
| Witham to Canton (Mississippi) | 4,514.39 mi (7,265.20 km) |
| Witham to Canton (Ohio) | 3,775.47 mi (6,076.04 km) |
| Witham to Canyon (Texas) | 4,842.97 mi (7,794.01 km) |
| Witham to Canyon Lake (California) | 5,441.06 mi (8,756.53 km) |
| Witham to Canyon Lake (Texas) | 4,976.89 mi (8,009.53 km) |
| Witham to Cape Coral (Florida) | 4,488.15 mi (7,222.98 km) |
| Witham to Cape Girardeau (Missouri) | 4,260.60 mi (6,856.78 km) |
| Witham to Carbondale (Illinois) | 4,227.47 mi (6,803.45 km) |
| Witham to Carlisle (Pennsylvania) | 3,637.60 mi (5,854.15 km) |
| Witham to Carlsbad (California) | 5,474.10 mi (8,809.72 km) |
