| Blackrock to Cabestany | 844.85 mi (1,359.65 km) |
| Blackrock to Cabries | 861.21 mi (1,385.99 km) |
| Blackrock to Cachan | 482.88 mi (777.12 km) |
| Blackrock to Caen | 379.50 mi (610.74 km) |
| Blackrock to Cagnes-sur-Mer | 900.38 mi (1,449.03 km) |
| Blackrock to Cahors | 702.01 mi (1,129.78 km) |
| Blackrock to Calais | 377.32 mi (607.24 km) |
| Blackrock to Caluire-et-Cuire | 714.85 mi (1,150.44 km) |
| Blackrock to Cambrai | 456.47 mi (734.62 km) |
| Blackrock to Canet-en-Roussillon | 844.77 mi (1,359.53 km) |
| Blackrock to Cannes | 902.46 mi (1,452.37 km) |
| Blackrock to Canteleu | 409.01 mi (658.23 km) |
| Blackrock to Capbreton | 701.53 mi (1,129.00 km) |
| Blackrock to Carcassonne | 798.75 mi (1,285.47 km) |
| Blackrock to Carmaux | 742.72 mi (1,195.29 km) |
