| Harrow on the Hill to Cabestany | 632.74 mi (1,018.29 km) |
| Harrow on the Hill to Cabries | 620.98 mi (999.37 km) |
| Harrow on the Hill to Cachan | 224.97 mi (362.05 km) |
| Harrow on the Hill to Caen | 164.83 mi (265.27 km) |
| Harrow on the Hill to Cagnes-sur-Mer | 646.89 mi (1,041.07 km) |
| Harrow on the Hill to Cahors | 498.55 mi (802.34 km) |
| Harrow on the Hill to Calais | 103.82 mi (167.08 km) |
| Harrow on the Hill to Caluire-et-Cuire | 463.18 mi (745.42 km) |
| Harrow on the Hill to Cambrai | 182.77 mi (294.13 km) |
| Harrow on the Hill to Canet-en-Roussillon | 631.79 mi (1,016.77 km) |
| Harrow on the Hill to Cannes | 650.35 mi (1,046.63 km) |
| Harrow on the Hill to Canteleu | 157.98 mi (254.24 km) |
| Harrow on the Hill to Capbreton | 549.84 mi (884.88 km) |
| Harrow on the Hill to Carcassonne | 590.68 mi (950.61 km) |
| Harrow on the Hill to Carmaux | 531.95 mi (856.09 km) |
