| Hertford to Cabestany | 645.44 mi (1,038.74 km) |
| Hertford to Cabries | 630.34 mi (1,014.43 km) |
| Hertford to Cachan | 233.23 mi (375.34 km) |
| Hertford to Caen | 181.25 mi (291.69 km) |
| Hertford to Cagnes-sur-Mer | 653.86 mi (1,052.29 km) |
| Hertford to Cahors | 512.55 mi (824.86 km) |
| Hertford to Calais | 101.95 mi (164.07 km) |
| Hertford to Caluire-et-Cuire | 471.09 mi (758.15 km) |
| Hertford to Cambrai | 182.43 mi (293.59 km) |
| Hertford to Canet-en-Roussillon | 644.42 mi (1,037.09 km) |
| Hertford to Cannes | 657.59 mi (1,058.28 km) |
| Hertford to Canteleu | 169.24 mi (272.37 km) |
| Hertford to Capbreton | 566.92 mi (912.36 km) |
| Hertford to Carcassonne | 603.91 mi (971.89 km) |
| Hertford to Carmaux | 545.14 mi (877.31 km) |
