| Watford to Rochefort | 395.55 mi (636.58 km) |
| Watford to Rodez | 522.92 mi (841.56 km) |
| Watford to Rognac | 621.85 mi (1,000.76 km) |
| Watford to Roissy-en-Brie | 239.37 mi (385.22 km) |
| Watford to Romainville | 228.62 mi (367.92 km) |
| Watford to Romans-sur-Isere | 520.29 mi (837.32 km) |
| Watford to Rombas | 330.21 mi (531.42 km) |
| Watford to Romilly-sur-Seine | 283.54 mi (456.31 km) |
| Watford to Ronchin | 167.55 mi (269.64 km) |
| Watford to Roncq | 164.44 mi (264.63 km) |
| Watford to Roquebrune-sur-Argens | 654.66 mi (1,053.58 km) |
| Watford to Roquevaire | 638.04 mi (1,026.82 km) |
| Watford to Rosny-sous-Bois | 230.80 mi (371.43 km) |
| Watford to Roubaix | 168.68 mi (271.47 km) |
| Watford to Rouen | 166.15 mi (267.39 km) |
