| Pittsburgh to Carlsbad (California) | 2,108.76 mi (3,393.72 km) |
| Pittsburgh to Carlsbad (New Mexico) | 1,452.79 mi (2,338.04 km) |
| Pittsburgh to Carmel (Indiana) | 327.16 mi (526.52 km) |
| Pittsburgh to Carmichael (California) | 2,186.76 mi (3,519.25 km) |
| Pittsburgh to Carney (Maryland) | 196.41 mi (316.10 km) |
| Pittsburgh to Carnot-Moon (Pennsylvania) | 13.82 mi (22.23 km) |
| Pittsburgh to Carol Stream (Illinois) | 436.00 mi (701.67 km) |
| Pittsburgh to Carolina (Puerto Rico) | 1,734.72 mi (2,791.77 km) |
| Pittsburgh to Carolina Forest (South Carolina) | 464.87 mi (748.13 km) |
| Pittsburgh to Carpentersville (Illinois) | 446.83 mi (719.10 km) |
| Pittsburgh to Carpinteria (California) | 2,190.55 mi (3,525.36 km) |
| Pittsburgh to Carrboro (North Carolina) | 315.58 mi (507.88 km) |
| Pittsburgh to Carroll (Iowa) | 780.48 mi (1,256.06 km) |
| Pittsburgh to Carrollton (Georgia) | 551.05 mi (886.82 km) |
| Pittsburgh to Carrollton (Texas) | 1,066.78 mi (1,716.82 km) |
