| Helensburgh to Cavaillon | 944.99 mi (1,520.82 km) |
| Helensburgh to Cebazat | 780.91 mi (1,256.75 km) |
| Helensburgh to Cenon | 792.49 mi (1,275.38 km) |
| Helensburgh to Cergy | 559.97 mi (901.18 km) |
| Helensburgh to Cernay | 759.11 mi (1,221.67 km) |
| Helensburgh to Cesson | 600.16 mi (965.87 km) |
| Helensburgh to Cesson-Sevigne | 561.36 mi (903.42 km) |
| Helensburgh to Cestas | 798.67 mi (1,285.34 km) |
| Helensburgh to Chalette-sur-Loing | 636.97 mi (1,025.10 km) |
| Helensburgh to Challans | 645.26 mi (1,038.45 km) |
| Helensburgh to Chalon-sur-Saone | 758.70 mi (1,221.02 km) |
| Helensburgh to Chalons-en-Champagne | 618.95 mi (996.10 km) |
| Helensburgh to Chamalieres | 783.97 mi (1,261.68 km) |
| Helensburgh to Chambery | 856.42 mi (1,378.28 km) |
| Helensburgh to Chambly | 556.03 mi (894.85 km) |
