| Wheat Ridge to Cividale del Friuli | 5,395.49 mi (8,683.20 km) |
| Wheat Ridge to Civita Castellana | 5,550.54 mi (8,932.73 km) |
| Wheat Ridge to Civitanova Marche | 5,546.27 mi (8,925.86 km) |
| Wheat Ridge to Civitavecchia | 5,538.65 mi (8,913.59 km) |
| Wheat Ridge to Civitella in Val di Chiana | 5,470.46 mi (8,803.86 km) |
| Wheat Ridge to Clusone | 5,288.56 mi (8,511.12 km) |
| Wheat Ridge to Coccaglio | 5,304.98 mi (8,537.55 km) |
| Wheat Ridge to Codigoro | 5,414.23 mi (8,713.36 km) |
| Wheat Ridge to Codogno | 5,314.95 mi (8,553.59 km) |
| Wheat Ridge to Codroipo | 5,387.28 mi (8,669.99 km) |
| Wheat Ridge to Cogoleto | 5,314.59 mi (8,553.00 km) |
| Wheat Ridge to Colle di Val d'Elsa | 5,450.77 mi (8,772.17 km) |
| Wheat Ridge to Colle Salvetti | 5,418.01 mi (8,719.44 km) |
| Wheat Ridge to Collecchio | 5,352.65 mi (8,614.26 km) |
| Wheat Ridge to Colleferro | 5,600.18 mi (9,012.62 km) |
