| Knightdale to Caldicot | 3,757.61 mi (6,047.29 km) |
| Knightdale to Calne | 3,791.26 mi (6,101.44 km) |
| Knightdale to Cam | 3,771.62 mi (6,069.83 km) |
| Knightdale to Camberley | 3,845.59 mi (6,188.89 km) |
| Knightdale to Camborne | 3,673.59 mi (5,912.07 km) |
| Knightdale to Cambridge | 3,864.12 mi (6,218.69 km) |
| Knightdale to Cambuslang | 3,636.67 mi (5,852.65 km) |
| Knightdale to Canford Cliffs | 3,808.12 mi (6,128.57 km) |
| Knightdale to Cannock | 3,768.08 mi (6,064.14 km) |
| Knightdale to Canterbury | 3,922.01 mi (6,311.86 km) |
| Knightdale to Carlisle | 3,696.50 mi (5,948.95 km) |
| Knightdale to Carlton Colville | 3,922.74 mi (6,313.04 km) |
| Knightdale to Carluke | 3,650.48 mi (5,874.89 km) |
| Knightdale to Carnoustie | 3,682.73 mi (5,926.79 km) |
| Knightdale to Carshalton | 3,868.78 mi (6,226.20 km) |
