| Gross-Gerau to Cologno al Serio | 304.84 mi (490.59 km) |
| Gross-Gerau to Cologno Monzese | 305.59 mi (491.80 km) |
| Gross-Gerau to Colorno | 355.70 mi (572.45 km) |
| Gross-Gerau to Comacchio | 399.95 mi (643.66 km) |
| Gross-Gerau to Comiso | 946.34 mi (1,522.99 km) |
| Gross-Gerau to Como | 285.26 mi (459.08 km) |
| Gross-Gerau to Concordia Sagittaria | 350.99 mi (564.87 km) |
| Gross-Gerau to Concorezzo | 301.73 mi (485.59 km) |
| Gross-Gerau to Conegliano | 329.76 mi (530.70 km) |
| Gross-Gerau to Conselice | 404.89 mi (651.62 km) |
| Gross-Gerau to Conselve | 360.00 mi (579.37 km) |
| Gross-Gerau to Conversano | 745.71 mi (1,200.10 km) |
| Gross-Gerau to Copertino | 812.48 mi (1,307.57 km) |
| Gross-Gerau to Copparo | 380.40 mi (612.19 km) |
| Gross-Gerau to Corato | 715.93 mi (1,152.17 km) |
