| Willoughby to Cividale del Friuli | 4,436.41 mi (7,139.71 km) |
| Willoughby to Civita Castellana | 4,544.31 mi (7,313.36 km) |
| Willoughby to Civitanova Marche | 4,559.00 mi (7,336.99 km) |
| Willoughby to Civitavecchia | 4,526.52 mi (7,284.73 km) |
| Willoughby to Civitella in Val di Chiana | 4,471.31 mi (7,195.87 km) |
| Willoughby to Clusone | 4,304.94 mi (6,928.13 km) |
| Willoughby to Coccaglio | 4,317.99 mi (6,949.13 km) |
| Willoughby to Codigoro | 4,432.68 mi (7,133.71 km) |
| Willoughby to Codogno | 4,321.84 mi (6,955.33 km) |
| Willoughby to Codroipo | 4,423.70 mi (7,119.26 km) |
| Willoughby to Cogoleto | 4,306.72 mi (6,931.00 km) |
| Willoughby to Colle di Val d'Elsa | 4,447.75 mi (7,157.96 km) |
| Willoughby to Colle Salvetti | 4,413.00 mi (7,102.04 km) |
| Willoughby to Collecchio | 4,358.23 mi (7,013.90 km) |
| Willoughby to Colleferro | 4,592.22 mi (7,390.46 km) |
