| Royan to Creutzwald | 438.04 mi (704.96 km) |
| Royan to Croissy-sur-Seine | 269.92 mi (434.40 km) |
| Royan to Croix | 399.05 mi (642.20 km) |
| Royan to Crosne | 269.61 mi (433.89 km) |
| Royan to Cuers | 387.58 mi (623.76 km) |
| Royan to Cugnaux | 185.87 mi (299.13 km) |
| Royan to Cusset | 219.26 mi (352.87 km) |
| Royan to Dammarie-le-Lys | 264.59 mi (425.82 km) |
| Royan to Dammartin-en-Goele | 294.22 mi (473.50 km) |
| Royan to Dardilly | 279.85 mi (450.38 km) |
| Royan to Darnetal | 283.16 mi (455.70 km) |
| Royan to Dax | 132.18 mi (212.73 km) |
| Royan to Decines-Charpieu | 289.78 mi (466.36 km) |
| Royan to Denain | 384.34 mi (618.54 km) |
| Royan to Deuil-la-Barre | 280.34 mi (451.17 km) |
