| Euclid to Cehegin | 4,078.69 mi (6,564.02 km) |
| Euclid to Cervello | 4,133.36 mi (6,652.00 km) |
| Euclid to Cervera | 4,093.25 mi (6,587.45 km) |
| Euclid to Ceuti | 4,103.73 mi (6,604.32 km) |
| Euclid to Cheste | 4,081.30 mi (6,568.21 km) |
| Euclid to Chiclana de la Frontera | 3,931.45 mi (6,327.05 km) |
| Euclid to Chipiona | 3,906.87 mi (6,287.50 km) |
| Euclid to Chiva | 4,079.97 mi (6,566.07 km) |
| Euclid to Churriana de la Vega | 4,024.99 mi (6,477.60 km) |
| Euclid to Ciempozuelos | 3,922.88 mi (6,313.27 km) |
| Euclid to Cieza | 4,091.19 mi (6,584.14 km) |
| Euclid to Cisterniga | 3,826.05 mi (6,157.43 km) |
| Euclid to Ciudad de Melilla | 4,125.49 mi (6,639.34 km) |
| Euclid to Ciudad Real | 3,948.82 mi (6,355.01 km) |
| Euclid to Ciudad-Rodrigo | 3,773.21 mi (6,072.40 km) |
