| Willoughby to Caldicot | 3,611.15 mi (5,811.59 km) |
| Willoughby to Calne | 3,644.77 mi (5,865.68 km) |
| Willoughby to Cam | 3,623.56 mi (5,831.56 km) |
| Willoughby to Camberley | 3,697.65 mi (5,950.80 km) |
| Willoughby to Camborne | 3,543.44 mi (5,702.61 km) |
| Willoughby to Cambridge | 3,707.49 mi (5,966.63 km) |
| Willoughby to Cambuslang | 3,456.38 mi (5,562.51 km) |
| Willoughby to Canford Cliffs | 3,667.65 mi (5,902.50 km) |
| Willoughby to Cannock | 3,611.16 mi (5,811.60 km) |
| Willoughby to Canterbury | 3,771.06 mi (6,068.94 km) |
| Willoughby to Carlisle | 3,522.50 mi (5,668.92 km) |
| Willoughby to Carlton Colville | 3,761.26 mi (6,053.17 km) |
| Willoughby to Carluke | 3,470.51 mi (5,585.25 km) |
| Willoughby to Carnoustie | 3,494.89 mi (5,624.49 km) |
| Willoughby to Carshalton | 3,719.52 mi (5,985.99 km) |
