| Clearlake to Cividale del Friuli | 5,961.83 mi (9,594.65 km) |
| Clearlake to Civita Castellana | 6,154.57 mi (9,904.83 km) |
| Clearlake to Civitanova Marche | 6,132.77 mi (9,869.74 km) |
| Clearlake to Civitavecchia | 6,148.62 mi (9,895.25 km) |
| Clearlake to Civitella in Val di Chiana | 6,070.65 mi (9,769.76 km) |
| Clearlake to Clusone | 5,880.99 mi (9,464.54 km) |
| Clearlake to Coccaglio | 5,899.87 mi (9,494.93 km) |
| Clearlake to Codigoro | 6,000.21 mi (9,656.41 km) |
| Clearlake to Codogno | 5,915.03 mi (9,519.33 km) |
| Clearlake to Codroipo | 5,957.99 mi (9,588.45 km) |
| Clearlake to Cogoleto | 5,928.17 mi (9,540.47 km) |
| Clearlake to Colle di Val d'Elsa | 6,055.23 mi (9,744.94 km) |
| Clearlake to Colle Salvetti | 6,025.41 mi (9,696.97 km) |
| Clearlake to Collecchio | 5,952.59 mi (9,579.77 km) |
| Clearlake to Colleferro | 6,204.16 mi (9,984.63 km) |
