| Webster Groves to Caldicot | 4,104.25 mi (6,605.15 km) |
| Webster Groves to Calne | 4,137.71 mi (6,659.00 km) |
| Webster Groves to Cam | 4,116.01 mi (6,624.07 km) |
| Webster Groves to Camberley | 4,189.83 mi (6,742.87 km) |
| Webster Groves to Camborne | 4,042.46 mi (6,505.71 km) |
| Webster Groves to Cambridge | 4,196.19 mi (6,753.11 km) |
| Webster Groves to Cambuslang | 3,935.84 mi (6,334.12 km) |
| Webster Groves to Canford Cliffs | 4,162.70 mi (6,699.21 km) |
| Webster Groves to Cannock | 4,100.18 mi (6,598.59 km) |
| Webster Groves to Canterbury | 4,261.76 mi (6,858.64 km) |
| Webster Groves to Carlisle | 4,004.55 mi (6,444.69 km) |
| Webster Groves to Carlton Colville | 4,247.68 mi (6,835.97 km) |
| Webster Groves to Carluke | 3,950.03 mi (6,356.96 km) |
| Webster Groves to Carnoustie | 3,970.38 mi (6,389.70 km) |
| Webster Groves to Carshalton | 4,211.09 mi (6,777.10 km) |
