| Castlebar to Rochefort | 660.16 mi (1,062.43 km) |
| Castlebar to Rodez | 846.36 mi (1,362.09 km) |
| Castlebar to Rognac | 972.63 mi (1,565.30 km) |
| Castlebar to Roissy-en-Brie | 622.40 mi (1,001.66 km) |
| Castlebar to Romainville | 610.67 mi (982.78 km) |
| Castlebar to Romans-sur-Isere | 883.69 mi (1,422.17 km) |
| Castlebar to Rombas | 732.02 mi (1,178.08 km) |
| Castlebar to Romilly-sur-Seine | 672.63 mi (1,082.49 km) |
| Castlebar to Ronchin | 569.42 mi (916.40 km) |
| Castlebar to Roncq | 565.92 mi (910.76 km) |
| Castlebar to Roquebrune-sur-Argens | 1,018.92 mi (1,639.79 km) |
| Castlebar to Roquevaire | 991.61 mi (1,595.84 km) |
| Castlebar to Rosny-sous-Bois | 613.13 mi (986.74 km) |
| Castlebar to Roubaix | 570.32 mi (917.84 km) |
| Castlebar to Rouen | 539.04 mi (867.49 km) |
