| Preakness to Cognac | 3,594.74 mi (5,785.18 km) |
| Preakness to Cogolin | 3,972.47 mi (6,393.07 km) |
| Preakness to Colmar | 3,858.36 mi (6,209.43 km) |
| Preakness to Colombes | 3,621.13 mi (5,827.65 km) |
| Preakness to Colomiers | 3,728.22 mi (5,999.99 km) |
| Preakness to Combs-la-Ville | 3,640.72 mi (5,859.18 km) |
| Preakness to Comines | 3,605.69 mi (5,802.80 km) |
| Preakness to Compiegne | 3,632.31 mi (5,845.63 km) |
| Preakness to Concarneau | 3,381.97 mi (5,442.75 km) |
| Preakness to Conde-sur-l'Escaut | 3,637.36 mi (5,853.76 km) |
| Preakness to Conflans-Sainte-Honorine | 3,612.70 mi (5,814.08 km) |
| Preakness to Corbas | 3,825.64 mi (6,156.78 km) |
| Preakness to Corbeil-Essonnes | 3,638.91 mi (5,856.26 km) |
| Preakness to Cormeilles-en-Parisis | 3,617.69 mi (5,822.11 km) |
| Preakness to Cosne sur Loire | 3,690.17 mi (5,938.75 km) |
