| Porthcawl to Coswig | 689.87 mi (1,110.24 km) |
| Porthcawl to Cottbus | 771.48 mi (1,241.57 km) |
| Porthcawl to Crailsheim | 627.42 mi (1,009.73 km) |
| Porthcawl to Cremlingen | 613.31 mi (987.02 km) |
| Porthcawl to Crimmitschau | 696.92 mi (1,121.59 km) |
| Porthcawl to Cuxhaven | 543.51 mi (874.69 km) |
| Porthcawl to Dachau | 707.77 mi (1,139.05 km) |
| Porthcawl to Dallgow-Doberitz | 714.06 mi (1,149.18 km) |
| Porthcawl to Damme | 510.20 mi (821.09 km) |
| Porthcawl to Darmstadt | 551.02 mi (886.78 km) |
| Porthcawl to Dassel | 573.35 mi (922.71 km) |
| Porthcawl to Datteln | 473.50 mi (762.02 km) |
| Porthcawl to Dautphe | 531.39 mi (855.18 km) |
| Porthcawl to Deggendorf | 757.86 mi (1,219.66 km) |
| Porthcawl to Delbruck | 525.51 mi (845.72 km) |
