| Troutdale to Cognac | 5,213.93 mi (8,391.00 km) |
| Troutdale to Cogolin | 5,548.15 mi (8,928.88 km) |
| Troutdale to Colmar | 5,292.19 mi (8,516.95 km) |
| Troutdale to Colombes | 5,109.94 mi (8,223.66 km) |
| Troutdale to Colomiers | 5,378.00 mi (8,655.05 km) |
| Troutdale to Combs-la-Ville | 5,132.36 mi (8,259.74 km) |
| Troutdale to Comines | 5,028.40 mi (8,092.43 km) |
| Troutdale to Compiegne | 5,098.15 mi (8,204.67 km) |
| Troutdale to Concarneau | 4,990.03 mi (8,030.68 km) |
| Troutdale to Conde-sur-l'Escaut | 5,060.92 mi (8,144.77 km) |
| Troutdale to Conflans-Sainte-Honorine | 5,101.57 mi (8,210.19 km) |
| Troutdale to Corbas | 5,364.97 mi (8,634.08 km) |
| Troutdale to Corbeil-Essonnes | 5,133.35 mi (8,261.33 km) |
| Troutdale to Cormeilles-en-Parisis | 5,105.78 mi (8,216.96 km) |
| Troutdale to Cosne sur Loire | 5,212.42 mi (8,388.59 km) |
