| Siena to Chambray-les-Tours | 585.06 mi (941.56 km) |
| Siena to Chamonix-Mont-Blanc | 283.70 mi (456.58 km) |
| Siena to Champigny-sur-Marne | 567.61 mi (913.49 km) |
| Siena to Champs-Sur-Marne | 566.08 mi (911.03 km) |
| Siena to Chanteloup-les-Vignes | 591.80 mi (952.40 km) |
| Siena to Chantepie | 705.11 mi (1,134.77 km) |
| Siena to Chantilly | 585.81 mi (942.76 km) |
| Siena to Chaponost | 364.13 mi (586.01 km) |
| Siena to Charenton-le-Pont | 571.95 mi (920.46 km) |
| Siena to Charleville-Mezieres | 545.11 mi (877.27 km) |
| Siena to Chartres | 591.10 mi (951.28 km) |
| Siena to Chassieu | 355.35 mi (571.89 km) |
| Siena to Chateau-d'Olonne | 675.33 mi (1,086.84 km) |
| Siena to Chateau-Gontier | 659.18 mi (1,060.85 km) |
| Siena to Chateau-Thierry | 547.59 mi (881.26 km) |
