| Castaic to Rochefort | 5,659.78 mi (9,108.54 km) |
| Castaic to Rodez | 5,860.21 mi (9,431.09 km) |
| Castaic to Rognac | 5,995.11 mi (9,648.19 km) |
| Castaic to Roissy-en-Brie | 5,646.68 mi (9,087.46 km) |
| Castaic to Romainville | 5,635.13 mi (9,068.86 km) |
| Castaic to Romans-sur-Isere | 5,910.70 mi (9,512.35 km) |
| Castaic to Rombas | 5,732.76 mi (9,225.99 km) |
| Castaic to Romilly-sur-Seine | 5,694.80 mi (9,164.89 km) |
| Castaic to Ronchin | 5,572.43 mi (8,967.96 km) |
| Castaic to Roncq | 5,566.20 mi (8,957.93 km) |
| Castaic to Roquebrune-sur-Argens | 6,045.27 mi (9,728.92 km) |
| Castaic to Roquevaire | 6,014.87 mi (9,680.00 km) |
| Castaic to Rosny-sous-Bois | 5,637.53 mi (9,072.73 km) |
| Castaic to Roubaix | 5,571.20 mi (8,965.97 km) |
| Castaic to Rouen | 5,564.54 mi (8,955.26 km) |
