| Mainz to Civita Castellana | 566.74 mi (912.07 km) |
| Mainz to Civitanova Marche | 529.26 mi (851.76 km) |
| Mainz to Civitavecchia | 570.26 mi (917.75 km) |
| Mainz to Civitella in Val di Chiana | 482.12 mi (775.90 km) |
| Mainz to Clusone | 293.78 mi (472.80 km) |
| Mainz to Coccaglio | 315.54 mi (507.82 km) |
| Mainz to Codigoro | 398.65 mi (641.56 km) |
| Mainz to Codogno | 339.92 mi (547.04 km) |
| Mainz to Codroipo | 352.97 mi (568.05 km) |
| Mainz to Cogoleto | 386.91 mi (622.67 km) |
| Mainz to Colle di Val d'Elsa | 474.62 mi (763.83 km) |
| Mainz to Colle Salvetti | 453.28 mi (729.48 km) |
| Mainz to Collecchio | 372.89 mi (600.10 km) |
| Mainz to Colleferro | 613.82 mi (987.84 km) |
| Mainz to Collegno | 340.50 mi (547.98 km) |
