| Diest to Ciampino | 728.58 mi (1,172.54 km) |
| Diest to Cicciano | 827.00 mi (1,330.93 km) |
| Diest to Cingoli | 650.39 mi (1,046.70 km) |
| Diest to Cinisello Balsamo | 421.38 mi (678.14 km) |
| Diest to Cinisi | 968.80 mi (1,559.13 km) |
| Diest to Cirie | 414.22 mi (666.62 km) |
| Diest to Ciro Marina | 992.26 mi (1,596.90 km) |
| Diest to Cislago | 410.01 mi (659.84 km) |
| Diest to Cisterna di Latina | 746.80 mi (1,201.86 km) |
| Diest to Cisternino | 923.03 mi (1,485.47 km) |
| Diest to Citta di Castello | 619.14 mi (996.41 km) |
| Diest to Citta Sant'Angelo | 722.60 mi (1,162.91 km) |
| Diest to Cittadella | 480.77 mi (773.73 km) |
| Diest to Cittanova | 1,025.09 mi (1,649.72 km) |
| Diest to Cividale del Friuli | 510.24 mi (821.15 km) |
