| Halfway to Caldicot | 3,554.08 mi (5,719.73 km) |
| Halfway to Calne | 3,587.78 mi (5,773.97 km) |
| Halfway to Cam | 3,567.43 mi (5,741.23 km) |
| Halfway to Camberley | 3,641.60 mi (5,860.59 km) |
| Halfway to Camborne | 3,476.96 mi (5,595.63 km) |
| Halfway to Cambridge | 3,656.49 mi (5,884.55 km) |
| Halfway to Cambuslang | 3,418.97 mi (5,502.30 km) |
| Halfway to Canford Cliffs | 3,607.26 mi (5,805.33 km) |
| Halfway to Cannock | 3,560.15 mi (5,729.50 km) |
| Halfway to Canterbury | 3,716.89 mi (5,981.75 km) |
| Halfway to Carlisle | 3,481.43 mi (5,602.82 km) |
| Halfway to Carlton Colville | 3,713.20 mi (5,975.83 km) |
| Halfway to Carluke | 3,432.94 mi (5,524.78 km) |
| Halfway to Carnoustie | 3,462.17 mi (5,571.82 km) |
| Halfway to Carshalton | 3,664.27 mi (5,897.08 km) |
