| Pittsburgh to Coudekerque-Branche | 3,827.73 mi (6,160.14 km) |
| Pittsburgh to Coueron | 3,762.70 mi (6,055.48 km) |
| Pittsburgh to Coulommiers | 3,919.00 mi (6,307.02 km) |
| Pittsburgh to Courbevoic | 3,882.40 mi (6,248.12 km) |
| Pittsburgh to Courcouronnes | 3,897.67 mi (6,272.69 km) |
| Pittsburgh to Cournon-d'Auvergne | 4,017.76 mi (6,465.96 km) |
| Pittsburgh to Courrieres | 3,865.83 mi (6,221.46 km) |
| Pittsburgh to Coutras | 3,894.99 mi (6,268.38 km) |
| Pittsburgh to Couzeix | 3,929.29 mi (6,323.58 km) |
| Pittsburgh to Cran-Gevrier | 4,136.25 mi (6,656.65 km) |
| Pittsburgh to Craponne | 4,082.89 mi (6,570.78 km) |
| Pittsburgh to Creil | 3,881.42 mi (6,246.54 km) |
| Pittsburgh to Crepy-en-Valois | 3,898.65 mi (6,274.28 km) |
| Pittsburgh to Crest | 4,129.01 mi (6,645.01 km) |
| Pittsburgh to Creteil | 3,894.15 mi (6,267.04 km) |
