| Groslay to Cologno al Serio | 417.02 mi (671.13 km) |
| Groslay to Cologno Monzese | 403.24 mi (648.95 km) |
| Groslay to Colorno | 470.90 mi (757.85 km) |
| Groslay to Comacchio | 550.64 mi (886.17 km) |
| Groslay to Comiso | 1,034.31 mi (1,664.56 km) |
| Groslay to Como | 383.93 mi (617.88 km) |
| Groslay to Concordia Sagittaria | 538.94 mi (867.33 km) |
| Groslay to Concorezzo | 402.79 mi (648.23 km) |
| Groslay to Conegliano | 511.57 mi (823.30 km) |
| Groslay to Conselice | 544.50 mi (876.28 km) |
| Groslay to Conselve | 516.91 mi (831.88 km) |
| Groslay to Conversano | 907.48 mi (1,460.44 km) |
| Groslay to Copertino | 976.26 mi (1,571.14 km) |
| Groslay to Copparo | 528.64 mi (850.76 km) |
| Groslay to Corato | 871.49 mi (1,402.52 km) |
