| Watford to Carson (California) | 5,437.80 mi (8,751.29 km) |
| Watford to Carson City (Nevada) | 5,179.82 mi (8,336.12 km) |
| Watford to Carteret (New Jersey) | 3,461.69 mi (5,571.05 km) |
| Watford to Cartersville (Georgia) | 4,188.98 mi (6,741.52 km) |
| Watford to Carthage (Missouri) | 4,415.79 mi (7,106.52 km) |
| Watford to Cary (Illinois) | 3,940.57 mi (6,341.73 km) |
| Watford to Cary (North Carolina) | 3,867.42 mi (6,224.00 km) |
| Watford to Casa de Oro-Mount Helix (California) | 5,457.33 mi (8,782.72 km) |
| Watford to Casa Grande (Arizona) | 5,273.93 mi (8,487.58 km) |
| Watford to Casas Adobes (Arizona) | 5,279.21 mi (8,496.06 km) |
| Watford to Cascades (Virginia) | 3,658.46 mi (5,887.73 km) |
| Watford to Casper (Wyoming) | 4,552.57 mi (7,326.66 km) |
| Watford to Casselberry (Florida) | 4,317.05 mi (6,947.62 km) |
| Watford to Castaic (California) | 5,412.87 mi (8,711.17 km) |
| Watford to Castle Pines (Colorado) | 4,680.63 mi (7,532.75 km) |
