| Pen-y-Bont ar Ogwr to Cernavoda | 1,531.19 mi (2,464.21 km) |
| Pen-y-Bont ar Ogwr to Chitila | 1,437.74 mi (2,313.81 km) |
| Pen-y-Bont ar Ogwr to Cisnadie | 1,319.32 mi (2,123.24 km) |
| Pen-y-Bont ar Ogwr to Cluj-Napoca | 1,262.67 mi (2,032.06 km) |
| Pen-y-Bont ar Ogwr to Codlea | 1,375.12 mi (2,213.04 km) |
| Pen-y-Bont ar Ogwr to Comanesti | 1,395.66 mi (2,246.10 km) |
| Pen-y-Bont ar Ogwr to Comarnic | 1,397.78 mi (2,249.50 km) |
| Pen-y-Bont ar Ogwr to Constanta | 1,562.79 mi (2,515.07 km) |
| Pen-y-Bont ar Ogwr to Corabia | 1,401.37 mi (2,255.29 km) |
| Pen-y-Bont ar Ogwr to Costesti | 1,385.25 mi (2,229.34 km) |
| Pen-y-Bont ar Ogwr to Covasna | 1,402.07 mi (2,256.41 km) |
| Pen-y-Bont ar Ogwr to Craiova | 1,352.03 mi (2,175.88 km) |
| Pen-y-Bont ar Ogwr to Cristuru Secuiesc | 1,339.09 mi (2,155.06 km) |
| Pen-y-Bont ar Ogwr to Cugir | 1,281.52 mi (2,062.41 km) |
| Pen-y-Bont ar Ogwr to Cumpana | 1,561.36 mi (2,512.77 km) |
