| Pen-y-Bont ar Ogwr to Cividale del Friuli | 856.87 mi (1,379.00 km) |
| Pen-y-Bont ar Ogwr to Civita Castellana | 983.53 mi (1,582.83 km) |
| Pen-y-Bont ar Ogwr to Civitanova Marche | 984.46 mi (1,584.33 km) |
| Pen-y-Bont ar Ogwr to Civitavecchia | 971.87 mi (1,564.07 km) |
| Pen-y-Bont ar Ogwr to Civitella in Val di Chiana | 904.12 mi (1,455.04 km) |
| Pen-y-Bont ar Ogwr to Clusone | 727.43 mi (1,170.69 km) |
| Pen-y-Bont ar Ogwr to Coccaglio | 742.07 mi (1,194.24 km) |
| Pen-y-Bont ar Ogwr to Codigoro | 855.02 mi (1,376.03 km) |
| Pen-y-Bont ar Ogwr to Codogno | 749.56 mi (1,206.30 km) |
| Pen-y-Bont ar Ogwr to Codroipo | 843.60 mi (1,357.65 km) |
| Pen-y-Bont ar Ogwr to Cogoleto | 747.87 mi (1,203.59 km) |
| Pen-y-Bont ar Ogwr to Colle di Val d'Elsa | 883.85 mi (1,422.42 km) |
| Pen-y-Bont ar Ogwr to Colle Salvetti | 850.96 mi (1,369.49 km) |
| Pen-y-Bont ar Ogwr to Collecchio | 787.02 mi (1,266.59 km) |
| Pen-y-Bont ar Ogwr to Colleferro | 1,033.14 mi (1,662.68 km) |
