| Blue Ash to Carpentras | 4,390.69 mi (7,066.13 km) |
| Blue Ash to Carquefou | 4,007.27 mi (6,449.08 km) |
| Blue Ash to Carqueiranne | 4,468.63 mi (7,191.56 km) |
| Blue Ash to Carrieres-sous-Poissy | 4,104.99 mi (6,606.35 km) |
| Blue Ash to Carrieres-sur-Seine | 4,116.32 mi (6,624.57 km) |
| Blue Ash to Carros | 4,492.43 mi (7,229.87 km) |
| Blue Ash to Carvin | 4,095.13 mi (6,590.48 km) |
| Blue Ash to Castanet-Tolosan | 4,254.58 mi (6,847.09 km) |
| Blue Ash to Castelginest | 4,245.84 mi (6,833.02 km) |
| Blue Ash to Castelnau-le-Lez | 4,355.59 mi (7,009.65 km) |
| Blue Ash to Castelnaudary | 4,281.20 mi (6,889.92 km) |
| Blue Ash to Castelsarrasin | 4,220.20 mi (6,791.76 km) |
| Blue Ash to Castres | 4,284.79 mi (6,895.70 km) |
| Blue Ash to Caudebec-les-Elbeuf | 4,053.55 mi (6,523.56 km) |
| Blue Ash to Caudry | 4,124.29 mi (6,637.41 km) |
