| Holtsville to Cividale del Friuli | 4,131.04 mi (6,648.27 km) |
| Holtsville to Civita Castellana | 4,217.44 mi (6,787.31 km) |
| Holtsville to Civitanova Marche | 4,240.04 mi (6,823.69 km) |
| Holtsville to Civitavecchia | 4,197.33 mi (6,754.95 km) |
| Holtsville to Civitella in Val di Chiana | 4,148.33 mi (6,676.09 km) |
| Holtsville to Clusone | 3,990.77 mi (6,422.52 km) |
| Holtsville to Coccaglio | 4,002.17 mi (6,440.87 km) |
| Holtsville to Codigoro | 4,117.75 mi (6,626.87 km) |
| Holtsville to Codogno | 4,003.32 mi (6,442.72 km) |
| Holtsville to Codroipo | 4,116.59 mi (6,625.01 km) |
| Holtsville to Cogoleto | 3,981.95 mi (6,408.32 km) |
| Holtsville to Colle di Val d'Elsa | 4,123.38 mi (6,635.95 km) |
| Holtsville to Colle Salvetti | 4,088.20 mi (6,579.32 km) |
| Holtsville to Collecchio | 4,038.68 mi (6,499.63 km) |
| Holtsville to Colleferro | 4,264.07 mi (6,862.36 km) |
