| Mainz to Cervello | 666.28 mi (1,072.28 km) |
| Mainz to Cervera | 665.45 mi (1,070.93 km) |
| Mainz to Ceuti | 947.49 mi (1,524.83 km) |
| Mainz to Cheste | 846.99 mi (1,363.10 km) |
| Mainz to Chiclana de la Frontera | 1,181.35 mi (1,901.20 km) |
| Mainz to Chipiona | 1,171.78 mi (1,885.80 km) |
| Mainz to Chiva | 848.38 mi (1,365.34 km) |
| Mainz to Churriana de la Vega | 1,065.83 mi (1,715.29 km) |
| Mainz to Ciempozuelos | 890.59 mi (1,433.26 km) |
| Mainz to Cieza | 941.24 mi (1,514.78 km) |
| Mainz to Cisterniga | 848.26 mi (1,365.15 km) |
| Mainz to Ciudad de Melilla | 1,161.82 mi (1,869.78 km) |
| Mainz to Ciudad Real | 966.10 mi (1,554.78 km) |
| Mainz to Ciudad-Rodrigo | 965.60 mi (1,553.99 km) |
| Mainz to Cocentaina | 886.26 mi (1,426.29 km) |
