| Castaic to Cognac | 5,693.60 mi (9,162.96 km) |
| Castaic to Cogolin | 6,051.35 mi (9,738.71 km) |
| Castaic to Colmar | 5,831.10 mi (9,384.25 km) |
| Castaic to Colombes | 5,627.28 mi (9,056.23 km) |
| Castaic to Colomiers | 5,852.05 mi (9,417.96 km) |
| Castaic to Combs-la-Ville | 5,649.55 mi (9,092.07 km) |
| Castaic to Comines | 5,562.34 mi (8,951.72 km) |
| Castaic to Compiegne | 5,621.89 mi (9,047.55 km) |
| Castaic to Concarneau | 5,466.67 mi (8,797.75 km) |
| Castaic to Conde-sur-l'Escaut | 5,595.65 mi (9,005.34 km) |
| Castaic to Conflans-Sainte-Honorine | 5,618.63 mi (9,042.32 km) |
| Castaic to Corbas | 5,874.55 mi (9,454.17 km) |
| Castaic to Corbeil-Essonnes | 5,649.73 mi (9,092.36 km) |
| Castaic to Cormeilles-en-Parisis | 5,623.20 mi (9,049.67 km) |
| Castaic to Cosne sur Loire | 5,722.80 mi (9,209.95 km) |
