| Caernarfon to Creutzwald | 546.49 mi (879.49 km) |
| Caernarfon to Croissy-sur-Seine | 405.19 mi (652.10 km) |
| Caernarfon to Croix | 358.90 mi (577.59 km) |
| Caernarfon to Crosne | 423.23 mi (681.12 km) |
| Caernarfon to Cuers | 831.86 mi (1,338.74 km) |
| Caernarfon to Cugnaux | 711.24 mi (1,144.63 km) |
| Caernarfon to Cusset | 594.10 mi (956.11 km) |
| Caernarfon to Dammarie-le-Lys | 438.87 mi (706.29 km) |
| Caernarfon to Dammartin-en-Goele | 412.78 mi (664.31 km) |
| Caernarfon to Dardilly | 647.75 mi (1,042.45 km) |
| Caernarfon to Darnetal | 346.29 mi (557.31 km) |
| Caernarfon to Dax | 667.89 mi (1,074.86 km) |
| Caernarfon to Decines-Charpieu | 655.56 mi (1,055.02 km) |
| Caernarfon to Denain | 380.90 mi (613.00 km) |
| Caernarfon to Deuil-la-Barre | 405.67 mi (652.87 km) |
