| Champaign to Cividale del Friuli | 4,774.67 mi (7,684.09 km) |
| Champaign to Civita Castellana | 4,892.38 mi (7,873.53 km) |
| Champaign to Civitanova Marche | 4,903.41 mi (7,891.27 km) |
| Champaign to Civitavecchia | 4,875.68 mi (7,846.64 km) |
| Champaign to Civitella in Val di Chiana | 4,817.79 mi (7,753.48 km) |
| Champaign to Clusone | 4,647.78 mi (7,479.88 km) |
| Champaign to Coccaglio | 4,661.55 mi (7,502.05 km) |
| Champaign to Codigoro | 4,775.54 mi (7,685.48 km) |
| Champaign to Codogno | 4,666.65 mi (7,510.25 km) |
| Champaign to Codroipo | 4,762.85 mi (7,665.07 km) |
| Champaign to Cogoleto | 4,654.40 mi (7,490.54 km) |
| Champaign to Colle di Val d'Elsa | 4,794.92 mi (7,716.67 km) |
| Champaign to Colle Salvetti | 4,760.45 mi (7,661.20 km) |
| Champaign to Collecchio | 4,703.42 mi (7,569.42 km) |
| Champaign to Colleferro | 4,940.76 mi (7,951.39 km) |
