| Guyancourt to Ciampino | 701.54 mi (1,129.02 km) |
| Guyancourt to Cicciano | 812.41 mi (1,307.45 km) |
| Guyancourt to Cingoli | 650.69 mi (1,047.18 km) |
| Guyancourt to Cinisello Balsamo | 402.41 mi (647.62 km) |
| Guyancourt to Cinisi | 915.91 mi (1,474.01 km) |
| Guyancourt to Cirie | 356.90 mi (574.37 km) |
| Guyancourt to Ciro Marina | 986.98 mi (1,588.40 km) |
| Guyancourt to Cislago | 388.58 mi (625.35 km) |
| Guyancourt to Cisterna di Latina | 720.15 mi (1,158.96 km) |
| Guyancourt to Cisternino | 933.30 mi (1,502.00 km) |
| Guyancourt to Citta di Castello | 608.98 mi (980.05 km) |
| Guyancourt to Citta Sant'Angelo | 720.71 mi (1,159.86 km) |
| Guyancourt to Cittadella | 503.68 mi (810.59 km) |
| Guyancourt to Cittanova | 1,002.12 mi (1,612.76 km) |
| Guyancourt to Cividale del Friuli | 561.41 mi (903.50 km) |
