| Gretz-Armainvilliers to Civita Castellana | 645.37 mi (1,038.62 km) |
| Gretz-Armainvilliers to Civitanova Marche | 646.91 mi (1,041.10 km) |
| Gretz-Armainvilliers to Civitavecchia | 634.63 mi (1,021.34 km) |
| Gretz-Armainvilliers to Civitella in Val di Chiana | 565.61 mi (910.26 km) |
| Gretz-Armainvilliers to Clusone | 391.23 mi (629.63 km) |
| Gretz-Armainvilliers to Coccaglio | 404.78 mi (651.44 km) |
| Gretz-Armainvilliers to Codigoro | 519.00 mi (835.24 km) |
| Gretz-Armainvilliers to Codogno | 411.20 mi (661.77 km) |
| Gretz-Armainvilliers to Codroipo | 516.05 mi (830.51 km) |
| Gretz-Armainvilliers to Cogoleto | 411.18 mi (661.74 km) |
| Gretz-Armainvilliers to Colle di Val d'Elsa | 545.56 mi (877.99 km) |
| Gretz-Armainvilliers to Colle Salvetti | 512.99 mi (825.57 km) |
| Gretz-Armainvilliers to Collecchio | 448.58 mi (721.93 km) |
| Gretz-Armainvilliers to Colleferro | 695.07 mi (1,118.60 km) |
| Gretz-Armainvilliers to Collegno | 340.78 mi (548.44 km) |
