| Watford to Clarkston (Georgia) | 4,183.43 mi (6,732.58 km) |
| Watford to Clarksville (Indiana) | 4,027.55 mi (6,481.72 km) |
| Watford to Clarksville (Tennessee) | 4,173.77 mi (6,717.04 km) |
| Watford to Clawson (Michigan) | 3,730.57 mi (6,003.77 km) |
| Watford to Clay (Alabama) | 4,285.04 mi (6,896.10 km) |
| Watford to Clayton (California) | 5,314.63 mi (8,553.07 km) |
| Watford to Clayton (Missouri) | 4,189.66 mi (6,742.61 km) |
| Watford to Clayton (North Carolina) | 3,857.98 mi (6,208.81 km) |
| Watford to Clayton (Ohio) | 3,898.35 mi (6,273.80 km) |
| Watford to Clearfield (Utah) | 4,831.15 mi (7,774.98 km) |
| Watford to Clearlake (California) | 5,276.06 mi (8,491.00 km) |
| Watford to Clearwater (Florida) | 4,411.60 mi (7,099.78 km) |
| Watford to Cleburne (Texas) | 4,778.75 mi (7,690.65 km) |
| Watford to Clemmons (North Carolina) | 3,919.83 mi (6,308.35 km) |
| Watford to Clemson (South Carolina) | 4,083.05 mi (6,571.03 km) |
