| Howard to Caldicot | 3,740.53 mi (6,019.80 km) |
| Howard to Calne | 3,773.63 mi (6,073.07 km) |
| Howard to Cam | 3,751.30 mi (6,037.14 km) |
| Howard to Camberley | 3,824.45 mi (6,154.86 km) |
| Howard to Camborne | 3,688.40 mi (5,935.90 km) |
| Howard to Cambridge | 3,826.15 mi (6,157.60 km) |
| Howard to Cambuslang | 3,556.29 mi (5,723.29 km) |
| Howard to Canford Cliffs | 3,801.64 mi (6,118.15 km) |
| Howard to Cannock | 3,730.92 mi (6,004.34 km) |
| Howard to Canterbury | 3,894.10 mi (6,266.94 km) |
| Howard to Carlisle | 3,627.45 mi (5,837.82 km) |
| Howard to Carlton Colville | 3,874.64 mi (6,235.64 km) |
| Howard to Carluke | 3,570.50 mi (5,746.16 km) |
| Howard to Carnoustie | 3,586.80 mi (5,772.40 km) |
| Howard to Carshalton | 3,844.81 mi (6,187.62 km) |
