| Watford to Rockville (Maryland) | 3,647.36 mi (5,869.86 km) |
| Watford to Rockville Centre (New York) | 3,434.17 mi (5,526.76 km) |
| Watford to Rockwall (Texas) | 4,712.09 mi (7,583.38 km) |
| Watford to Rocky Mount (North Carolina) | 3,816.88 mi (6,142.67 km) |
| Watford to Rocky Point (New York) | 3,393.79 mi (5,461.77 km) |
| Watford to Rocky River (Ohio) | 3,727.84 mi (5,999.38 km) |
| Watford to Roessleville (New York) | 3,353.78 mi (5,397.38 km) |
| Watford to Rogers (Arkansas) | 4,451.13 mi (7,163.40 km) |
| Watford to Rogers (Minnesota) | 3,997.21 mi (6,432.89 km) |
| Watford to Rohnert Park (California) | 5,313.46 mi (8,551.19 km) |
| Watford to Rolla (Missouri) | 4,278.64 mi (6,885.81 km) |
| Watford to Rolling Meadows (Illinois) | 3,938.51 mi (6,338.42 km) |
| Watford to Roma (Texas) | 5,153.60 mi (8,293.91 km) |
| Watford to Rome (Georgia) | 4,199.61 mi (6,758.62 km) |
| Watford to Rome (New York) | 3,399.41 mi (5,470.82 km) |
