| Diest to Civita Castellana | 693.64 mi (1,116.30 km) |
| Diest to Civitanova Marche | 668.66 mi (1,076.10 km) |
| Diest to Civitavecchia | 691.91 mi (1,113.52 km) |
| Diest to Civitella in Val di Chiana | 608.79 mi (979.75 km) |
| Diest to Clusone | 417.72 mi (672.25 km) |
| Diest to Coccaglio | 437.54 mi (704.16 km) |
| Diest to Codigoro | 535.87 mi (862.41 km) |
| Diest to Codogno | 455.98 mi (733.83 km) |
| Diest to Codroipo | 501.75 mi (807.50 km) |
| Diest to Cogoleto | 485.24 mi (780.92 km) |
| Diest to Colle di Val d'Elsa | 596.32 mi (959.68 km) |
| Diest to Colle Salvetti | 569.83 mi (917.05 km) |
| Diest to Collecchio | 492.55 mi (792.68 km) |
| Diest to Colleferro | 742.55 mi (1,195.02 km) |
| Diest to Collegno | 424.38 mi (682.97 km) |
