| Watford to Radauti | 1,196.96 mi (1,926.33 km) |
| Watford to Ramnicu Sarat | 1,319.94 mi (2,124.24 km) |
| Watford to Ramnicu Valcea | 1,216.16 mi (1,957.23 km) |
| Watford to Rasnov | 1,245.04 mi (2,003.70 km) |
| Watford to Reghin | 1,175.44 mi (1,891.69 km) |
| Watford to Resita | 1,105.47 mi (1,779.07 km) |
| Watford to Roman | 1,265.67 mi (2,036.89 km) |
| Watford to Rosiori de Vede | 1,278.26 mi (2,057.16 km) |
| Watford to Rovinari | 1,172.39 mi (1,886.79 km) |
| Watford to Roznov | 1,250.56 mi (2,012.59 km) |
| Watford to Sabaoani | 1,259.72 mi (2,027.33 km) |
| Watford to Sacele | 1,254.70 mi (2,019.24 km) |
| Watford to Sacueni | 1,047.08 mi (1,685.11 km) |
| Watford to Salcea | 1,221.42 mi (1,965.69 km) |
| Watford to Salonta | 1,045.01 mi (1,681.78 km) |
