| Harrow on the Hill to Creutzwald | 349.75 mi (562.87 km) |
| Harrow on the Hill to Croissy-sur-Seine | 215.51 mi (346.82 km) |
| Harrow on the Hill to Croix | 163.02 mi (262.35 km) |
| Harrow on the Hill to Crosne | 232.56 mi (374.27 km) |
| Harrow on the Hill to Cuers | 648.08 mi (1,042.98 km) |
| Harrow on the Hill to Cugnaux | 560.10 mi (901.39 km) |
| Harrow on the Hill to Cusset | 412.77 mi (664.29 km) |
| Harrow on the Hill to Dammarie-le-Lys | 248.44 mi (399.83 km) |
| Harrow on the Hill to Dammartin-en-Goele | 218.58 mi (351.77 km) |
| Harrow on the Hill to Dardilly | 460.39 mi (740.92 km) |
| Harrow on the Hill to Darnetal | 160.38 mi (258.10 km) |
| Harrow on the Hill to Dax | 543.78 mi (875.13 km) |
| Harrow on the Hill to Decines-Charpieu | 467.36 mi (752.14 km) |
| Harrow on the Hill to Denain | 183.37 mi (295.11 km) |
| Harrow on the Hill to Deuil-la-Barre | 213.96 mi (344.33 km) |
