| Pittsburgh to Caldicot | 3,607.12 mi (5,805.10 km) |
| Pittsburgh to Calne | 3,640.80 mi (5,859.30 km) |
| Pittsburgh to Cam | 3,620.00 mi (5,825.83 km) |
| Pittsburgh to Camberley | 3,694.18 mi (5,945.21 km) |
| Pittsburgh to Camborne | 3,534.79 mi (5,688.69 km) |
| Pittsburgh to Cambridge | 3,706.46 mi (5,964.98 km) |
| Pittsburgh to Cambuslang | 3,461.69 mi (5,571.04 km) |
| Pittsburgh to Canford Cliffs | 3,662.05 mi (5,893.50 km) |
| Pittsburgh to Cannock | 3,610.06 mi (5,809.83 km) |
| Pittsburgh to Canterbury | 3,768.54 mi (6,064.88 km) |
| Pittsburgh to Carlisle | 3,526.11 mi (5,674.72 km) |
| Pittsburgh to Carlton Colville | 3,761.69 mi (6,053.85 km) |
| Pittsburgh to Carluke | 3,475.75 mi (5,593.68 km) |
| Pittsburgh to Carnoustie | 3,502.45 mi (5,636.65 km) |
| Pittsburgh to Carshalton | 3,716.45 mi (5,981.04 km) |
