| Guyancourt to Busto Garolfo | 389.70 mi (627.16 km) |
| Guyancourt to Cabras | 688.41 mi (1,107.89 km) |
| Guyancourt to Cadelbosco di Sopra | 488.79 mi (786.64 km) |
| Guyancourt to Cadoneghe | 516.78 mi (831.67 km) |
| Guyancourt to Cagli | 620.64 mi (998.82 km) |
| Guyancourt to Cagliari | 745.65 mi (1,200.00 km) |
| Guyancourt to Cairo Montenotte | 421.28 mi (677.98 km) |
| Guyancourt to Caivano | 804.78 mi (1,295.17 km) |
| Guyancourt to Calcinaia | 538.24 mi (866.21 km) |
| Guyancourt to Calcinato | 453.74 mi (730.22 km) |
| Guyancourt to Calderara di Reno | 523.24 mi (842.07 km) |
| Guyancourt to Caldogno | 493.19 mi (793.71 km) |
| Guyancourt to Calenzano | 549.92 mi (885.00 km) |
| Guyancourt to Calolziocorte | 401.14 mi (645.58 km) |
| Guyancourt to Caltagirone | 1,012.19 mi (1,628.97 km) |
