| Royan to Saint-Etienne | 263.27 mi (423.69 km) |
| Royan to Saint-Etienne-du-Rouvray | 278.15 mi (447.64 km) |
| Royan to Saint-Fargeau | 262.46 mi (422.38 km) |
| Royan to Saint-Fons | 284.71 mi (458.19 km) |
| Royan to Saint-Gaudens | 194.43 mi (312.91 km) |
| Royan to Saint-Gely-du-Fesc | 273.06 mi (439.44 km) |
| Royan to Saint-Genis-Laval | 281.81 mi (453.53 km) |
| Royan to Saint-Genis-Pouilly | 342.06 mi (550.48 km) |
| Royan to Saint-Germain-en-Laye | 269.88 mi (434.33 km) |
| Royan to Saint-Germain-les-Arpajon | 257.31 mi (414.10 km) |
| Royan to Saint-Gilles | 300.69 mi (483.91 km) |
| Royan to Saint-Gratien | 278.91 mi (448.86 km) |
| Royan to Saint-Gregoire | 177.29 mi (285.31 km) |
| Royan to Saint-Herblain | 113.53 mi (182.71 km) |
| Royan to Saint-Hilaire-de-Riez | 87.29 mi (140.48 km) |
