| Watford to Racale | 1,196.07 mi (1,924.88 km) |
| Watford to Racconigi | 603.30 mi (970.91 km) |
| Watford to Raffadali | 1,195.63 mi (1,924.18 km) |
| Watford to Ragusa | 1,257.76 mi (2,024.17 km) |
| Watford to Ramacca | 1,229.90 mi (1,979.33 km) |
| Watford to Randazzo | 1,208.12 mi (1,944.28 km) |
| Watford to Rapallo | 671.85 mi (1,081.24 km) |
| Watford to Ravanusa | 1,215.90 mi (1,956.80 km) |
| Watford to Ravenna | 765.52 mi (1,231.98 km) |
| Watford to Recanati | 862.63 mi (1,388.28 km) |
| Watford to Recco | 668.42 mi (1,075.72 km) |
| Watford to Reggello | 780.08 mi (1,255.42 km) |
| Watford to Reggio di Calabria | 1,216.08 mi (1,957.09 km) |
| Watford to Reggio Emilia | 697.98 mi (1,123.30 km) |
| Watford to Reggiolo | 693.22 mi (1,115.64 km) |
