| Pittsburgh to Carpentras | 4,152.57 mi (6,682.91 km) |
| Pittsburgh to Carquefou | 3,770.31 mi (6,067.73 km) |
| Pittsburgh to Carqueiranne | 4,229.89 mi (6,807.35 km) |
| Pittsburgh to Carrieres-sous-Poissy | 3,872.11 mi (6,231.56 km) |
| Pittsburgh to Carrieres-sur-Seine | 3,883.50 mi (6,249.89 km) |
| Pittsburgh to Carros | 4,255.04 mi (6,847.83 km) |
| Pittsburgh to Carvin | 3,865.27 mi (6,220.56 km) |
| Pittsburgh to Castanet-Tolosan | 4,014.26 mi (6,460.32 km) |
| Pittsburgh to Castelginest | 4,005.68 mi (6,446.52 km) |
| Pittsburgh to Castelnau-le-Lez | 4,116.45 mi (6,624.78 km) |
| Pittsburgh to Castelnaudary | 4,040.85 mi (6,503.13 km) |
| Pittsburgh to Castelsarrasin | 3,980.29 mi (6,405.66 km) |
| Pittsburgh to Castres | 4,044.88 mi (6,509.60 km) |
| Pittsburgh to Caudebec-les-Elbeuf | 3,820.70 mi (6,148.83 km) |
| Pittsburgh to Caudry | 3,894.04 mi (6,266.85 km) |
