| Pittsburgh to Carrollwood (Florida) | 867.60 mi (1,396.26 km) |
| Pittsburgh to Carson (California) | 2,139.73 mi (3,443.57 km) |
| Pittsburgh to Carson City (Nevada) | 2,095.26 mi (3,372.00 km) |
| Pittsburgh to Carteret (New Jersey) | 302.05 mi (486.10 km) |
| Pittsburgh to Cartersville (Georgia) | 508.03 mi (817.60 km) |
| Pittsburgh to Carthage (Missouri) | 804.23 mi (1,294.28 km) |
| Pittsburgh to Cary (Illinois) | 446.19 mi (718.08 km) |
| Pittsburgh to Cary (North Carolina) | 327.90 mi (527.70 km) |
| Pittsburgh to Casa de Oro-Mount Helix (California) | 2,102.76 mi (3,384.07 km) |
| Pittsburgh to Casa Grande (Arizona) | 1,825.62 mi (2,938.05 km) |
| Pittsburgh to Casas Adobes (Arizona) | 1,803.73 mi (2,902.83 km) |
| Pittsburgh to Cascades (Virginia) | 167.87 mi (270.16 km) |
| Pittsburgh to Casper (Wyoming) | 1,364.75 mi (2,196.35 km) |
| Pittsburgh to Casselberry (Florida) | 817.30 mi (1,315.31 km) |
| Pittsburgh to Castaic (California) | 2,142.00 mi (3,447.22 km) |
