| Gretz-Armainvilliers to Cologno al Serio | 393.06 mi (632.57 km) |
| Gretz-Armainvilliers to Cologno Monzese | 379.09 mi (610.09 km) |
| Gretz-Armainvilliers to Colorno | 446.78 mi (719.02 km) |
| Gretz-Armainvilliers to Comacchio | 526.96 mi (848.05 km) |
| Gretz-Armainvilliers to Comiso | 1,009.88 mi (1,625.25 km) |
| Gretz-Armainvilliers to Como | 359.91 mi (579.21 km) |
| Gretz-Armainvilliers to Concordia Sagittaria | 516.48 mi (831.19 km) |
| Gretz-Armainvilliers to Concorezzo | 378.71 mi (609.47 km) |
| Gretz-Armainvilliers to Conegliano | 489.02 mi (787.00 km) |
| Gretz-Armainvilliers to Conselice | 520.59 mi (837.80 km) |
| Gretz-Armainvilliers to Conselve | 493.51 mi (794.23 km) |
| Gretz-Armainvilliers to Conversano | 883.45 mi (1,421.78 km) |
| Gretz-Armainvilliers to Copertino | 952.22 mi (1,532.45 km) |
| Gretz-Armainvilliers to Copparo | 504.97 mi (812.67 km) |
| Gretz-Armainvilliers to Corato | 847.38 mi (1,363.72 km) |
