| Mountain Ash to Cabestany | 688.50 mi (1,108.04 km) |
| Mountain Ash to Cabries | 699.60 mi (1,125.89 km) |
| Mountain Ash to Cachan | 321.65 mi (517.64 km) |
| Mountain Ash to Caen | 217.70 mi (350.36 km) |
| Mountain Ash to Cagnes-sur-Mer | 737.95 mi (1,187.62 km) |
| Mountain Ash to Cahors | 546.82 mi (880.03 km) |
| Mountain Ash to Calais | 231.66 mi (372.82 km) |
| Mountain Ash to Caluire-et-Cuire | 552.42 mi (889.04 km) |
| Mountain Ash to Cambrai | 306.12 mi (492.65 km) |
| Mountain Ash to Canet-en-Roussillon | 688.21 mi (1,107.57 km) |
| Mountain Ash to Cannes | 740.03 mi (1,190.97 km) |
| Mountain Ash to Canteleu | 247.50 mi (398.32 km) |
| Mountain Ash to Capbreton | 562.76 mi (905.68 km) |
| Mountain Ash to Carcassonne | 643.14 mi (1,035.04 km) |
| Mountain Ash to Carmaux | 586.07 mi (943.19 km) |
