| Blue Ash to Cognac | 4,105.21 mi (6,606.70 km) |
| Blue Ash to Cogolin | 4,482.68 mi (7,214.18 km) |
| Blue Ash to Colmar | 4,348.03 mi (6,997.48 km) |
| Blue Ash to Colombes | 4,114.43 mi (6,621.54 km) |
| Blue Ash to Colomiers | 4,244.24 mi (6,830.44 km) |
| Blue Ash to Combs-la-Ville | 4,134.77 mi (6,654.27 km) |
| Blue Ash to Comines | 4,089.04 mi (6,580.67 km) |
| Blue Ash to Compiegne | 4,122.51 mi (6,634.54 km) |
| Blue Ash to Concarneau | 3,887.76 mi (6,256.75 km) |
| Blue Ash to Conde-sur-l'Escaut | 4,121.45 mi (6,632.84 km) |
| Blue Ash to Conflans-Sainte-Honorine | 4,105.86 mi (6,607.74 km) |
| Blue Ash to Corbas | 4,329.19 mi (6,967.16 km) |
| Blue Ash to Corbeil-Essonnes | 4,133.32 mi (6,651.94 km) |
| Blue Ash to Cormeilles-en-Parisis | 4,110.83 mi (6,615.74 km) |
| Blue Ash to Cosne sur Loire | 4,189.31 mi (6,742.05 km) |
