| Uniondale to Cividale del Friuli | 4,157.99 mi (6,691.64 km) |
| Uniondale to Civita Castellana | 4,245.20 mi (6,831.98 km) |
| Uniondale to Civitanova Marche | 4,267.52 mi (6,867.91 km) |
| Uniondale to Civitavecchia | 4,225.17 mi (6,799.75 km) |
| Uniondale to Civitella in Val di Chiana | 4,175.94 mi (6,720.52 km) |
| Uniondale to Clusone | 4,018.03 mi (6,466.40 km) |
| Uniondale to Coccaglio | 4,029.50 mi (6,484.85 km) |
| Uniondale to Codigoro | 4,145.06 mi (6,670.83 km) |
| Uniondale to Codogno | 4,030.75 mi (6,486.86 km) |
| Uniondale to Codroipo | 4,143.60 mi (6,668.48 km) |
| Uniondale to Cogoleto | 4,009.60 mi (6,452.83 km) |
| Uniondale to Colle di Val d'Elsa | 4,151.04 mi (6,680.46 km) |
| Uniondale to Colle Salvetti | 4,115.87 mi (6,623.85 km) |
| Uniondale to Collecchio | 4,066.15 mi (6,543.84 km) |
| Uniondale to Colleferro | 4,291.88 mi (6,907.11 km) |
