| Diemen to Cividale del Friuli | 574.99 mi (925.36 km) |
| Diemen to Civita Castellana | 775.25 mi (1,247.65 km) |
| Diemen to Civitanova Marche | 743.78 mi (1,197.00 km) |
| Diemen to Civitavecchia | 775.54 mi (1,248.11 km) |
| Diemen to Civitella in Val di Chiana | 690.24 mi (1,110.83 km) |
| Diemen to Clusone | 499.12 mi (803.26 km) |
| Diemen to Coccaglio | 519.81 mi (836.55 km) |
| Diemen to Codigoro | 611.98 mi (984.88 km) |
| Diemen to Codogno | 540.31 mi (869.54 km) |
| Diemen to Codroipo | 569.29 mi (916.18 km) |
| Diemen to Cogoleto | 574.08 mi (923.89 km) |
| Diemen to Colle di Val d'Elsa | 679.60 mi (1,093.71 km) |
| Diemen to Colle Salvetti | 654.69 mi (1,053.62 km) |
| Diemen to Collecchio | 576.00 mi (926.98 km) |
| Diemen to Colleferro | 823.50 mi (1,325.29 km) |
