| Caernarfon to Rochefort | 518.87 mi (835.03 km) |
| Caernarfon to Rodez | 681.95 mi (1,097.49 km) |
| Caernarfon to Rognac | 795.61 mi (1,280.42 km) |
| Caernarfon to Roissy-en-Brie | 425.11 mi (684.16 km) |
| Caernarfon to Romainville | 413.70 mi (665.79 km) |
| Caernarfon to Romans-sur-Isere | 699.21 mi (1,125.27 km) |
| Caernarfon to Rombas | 522.40 mi (840.71 km) |
| Caernarfon to Romilly-sur-Seine | 472.65 mi (760.66 km) |
| Caernarfon to Ronchin | 359.20 mi (578.08 km) |
| Caernarfon to Roncq | 355.08 mi (571.44 km) |
| Caernarfon to Roquebrune-sur-Argens | 834.87 mi (1,343.60 km) |
| Caernarfon to Roquevaire | 813.25 mi (1,308.79 km) |
| Caernarfon to Rosny-sous-Bois | 416.06 mi (669.59 km) |
| Caernarfon to Roubaix | 359.63 mi (578.77 km) |
| Caernarfon to Rouen | 344.58 mi (554.55 km) |
