| Penarth to Cividale del Friuli | 838.52 mi (1,349.46 km) |
| Penarth to Civita Castellana | 966.01 mi (1,554.64 km) |
| Penarth to Civitanova Marche | 966.47 mi (1,555.39 km) |
| Penarth to Civitavecchia | 954.54 mi (1,536.18 km) |
| Penarth to Civitella in Val di Chiana | 886.43 mi (1,426.57 km) |
| Penarth to Clusone | 709.36 mi (1,141.61 km) |
| Penarth to Coccaglio | 724.08 mi (1,165.30 km) |
| Penarth to Codigoro | 836.92 mi (1,346.90 km) |
| Penarth to Codogno | 731.74 mi (1,177.63 km) |
| Penarth to Codroipo | 825.28 mi (1,328.15 km) |
| Penarth to Cogoleto | 730.59 mi (1,175.78 km) |
| Penarth to Colle di Val d'Elsa | 866.28 mi (1,394.15 km) |
| Penarth to Colle Salvetti | 833.48 mi (1,341.35 km) |
| Penarth to Collecchio | 769.23 mi (1,237.96 km) |
| Penarth to Colleferro | 1,015.65 mi (1,634.53 km) |
