| Champaign to Cadiz | 4,284.37 mi (6,895.03 km) |
| Champaign to Calafell | 4,476.36 mi (7,204.00 km) |
| Champaign to Calahorra | 4,281.13 mi (6,889.81 km) |
| Champaign to Calasparra | 4,438.47 mi (7,143.02 km) |
| Champaign to Calatayud | 4,329.19 mi (6,967.16 km) |
| Champaign to Caldas de Montbuy | 4,486.55 mi (7,220.41 km) |
| Champaign to Caldas de Reyes | 3,972.31 mi (6,392.81 km) |
| Champaign to Calella | 4,508.77 mi (7,256.17 km) |
| Champaign to Callosa de Segura | 4,480.14 mi (7,210.09 km) |
| Champaign to Calpe | 4,502.92 mi (7,246.75 km) |
| Champaign to Calvia | 4,579.00 mi (7,369.19 km) |
| Champaign to Camas | 4,266.23 mi (6,865.83 km) |
| Champaign to Cambados | 3,968.18 mi (6,386.16 km) |
| Champaign to Cambre | 3,964.95 mi (6,380.97 km) |
| Champaign to Cambrils | 4,458.68 mi (7,175.56 km) |
