| Colwyn Bay to Cividale del Friuli | 909.20 mi (1,463.21 km) |
| Colwyn Bay to Civita Castellana | 1,061.21 mi (1,707.86 km) |
| Colwyn Bay to Civitanova Marche | 1,052.65 mi (1,694.08 km) |
| Colwyn Bay to Civitavecchia | 1,052.61 mi (1,694.01 km) |
| Colwyn Bay to Civitella in Val di Chiana | 979.18 mi (1,575.83 km) |
| Colwyn Bay to Clusone | 795.00 mi (1,279.43 km) |
| Colwyn Bay to Coccaglio | 811.73 mi (1,306.36 km) |
| Colwyn Bay to Codigoro | 920.69 mi (1,481.70 km) |
| Colwyn Bay to Codogno | 823.03 mi (1,324.54 km) |
| Colwyn Bay to Codroipo | 898.55 mi (1,446.08 km) |
| Colwyn Bay to Cogoleto | 830.41 mi (1,336.42 km) |
| Colwyn Bay to Colle di Val d'Elsa | 961.24 mi (1,546.96 km) |
| Colwyn Bay to Colle Salvetti | 929.92 mi (1,496.56 km) |
| Colwyn Bay to Collecchio | 860.82 mi (1,385.36 km) |
| Colwyn Bay to Colleferro | 1,111.03 mi (1,788.04 km) |
