| Euclid to Cividale del Friuli | 4,443.25 mi (7,150.72 km) |
| Euclid to Civita Castellana | 4,551.18 mi (7,324.41 km) |
| Euclid to Civitanova Marche | 4,565.86 mi (7,348.04 km) |
| Euclid to Civitavecchia | 4,533.40 mi (7,295.80 km) |
| Euclid to Civitella in Val di Chiana | 4,478.17 mi (7,206.92 km) |
| Euclid to Clusone | 4,311.80 mi (6,939.17 km) |
| Euclid to Coccaglio | 4,324.84 mi (6,960.16 km) |
| Euclid to Codigoro | 4,439.54 mi (7,144.75 km) |
| Euclid to Codogno | 4,328.71 mi (6,966.38 km) |
| Euclid to Codroipo | 4,430.55 mi (7,130.28 km) |
| Euclid to Cogoleto | 4,313.59 mi (6,942.05 km) |
| Euclid to Colle di Val d'Elsa | 4,454.62 mi (7,169.02 km) |
| Euclid to Colle Salvetti | 4,419.87 mi (7,113.10 km) |
| Euclid to Collecchio | 4,365.10 mi (7,024.94 km) |
| Euclid to Colleferro | 4,599.09 mi (7,401.52 km) |
