| Grass Valley to Cognac | 5,517.61 mi (8,879.73 km) |
| Grass Valley to Cogolin | 5,864.92 mi (9,438.68 km) |
| Grass Valley to Colmar | 5,626.31 mi (9,054.68 km) |
| Grass Valley to Colombes | 5,432.61 mi (8,742.93 km) |
| Grass Valley to Colomiers | 5,679.32 mi (9,139.98 km) |
| Grass Valley to Combs-la-Ville | 5,455.02 mi (8,779.00 km) |
| Grass Valley to Comines | 5,359.27 mi (8,624.92 km) |
| Grass Valley to Compiegne | 5,424.04 mi (8,729.14 km) |
| Grass Valley to Concarneau | 5,291.40 mi (8,515.69 km) |
| Grass Valley to Conde-sur-l'Escaut | 5,392.29 mi (8,678.05 km) |
| Grass Valley to Conflans-Sainte-Honorine | 5,424.07 mi (8,729.20 km) |
| Grass Valley to Corbas | 5,684.44 mi (9,148.22 km) |
| Grass Valley to Corbeil-Essonnes | 5,455.60 mi (8,779.93 km) |
| Grass Valley to Cormeilles-en-Parisis | 5,428.47 mi (8,736.29 km) |
| Grass Valley to Cosne sur Loire | 5,531.84 mi (8,902.64 km) |
