| Alpena to Caldicot | 3,541.81 mi (5,699.99 km) |
| Alpena to Calne | 3,575.12 mi (5,753.60 km) |
| Alpena to Cam | 3,553.12 mi (5,718.20 km) |
| Alpena to Camberley | 3,626.68 mi (5,836.58 km) |
| Alpena to Camborne | 3,484.79 mi (5,608.23 km) |
| Alpena to Cambridge | 3,631.04 mi (5,843.59 km) |
| Alpena to Cambuslang | 3,367.14 mi (5,418.88 km) |
| Alpena to Canford Cliffs | 3,601.55 mi (5,796.13 km) |
| Alpena to Cannock | 3,535.30 mi (5,689.52 km) |
| Alpena to Canterbury | 3,697.64 mi (5,950.78 km) |
| Alpena to Carlisle | 3,436.67 mi (5,530.78 km) |
| Alpena to Carlton Colville | 3,681.37 mi (5,924.59 km) |
| Alpena to Carluke | 3,381.34 mi (5,441.75 km) |
| Alpena to Carnoustie | 3,400.55 mi (5,472.66 km) |
| Alpena to Carshalton | 3,647.55 mi (5,870.17 km) |
