| Hillsborough to Cividale del Friuli | 4,210.94 mi (6,776.85 km) |
| Hillsborough to Civita Castellana | 4,299.61 mi (6,919.55 km) |
| Hillsborough to Civitanova Marche | 4,321.42 mi (6,954.66 km) |
| Hillsborough to Civitavecchia | 4,279.72 mi (6,887.55 km) |
| Hillsborough to Civitella in Val di Chiana | 4,230.09 mi (6,807.67 km) |
| Hillsborough to Clusone | 4,071.56 mi (6,552.54 km) |
| Hillsborough to Coccaglio | 4,083.14 mi (6,571.18 km) |
| Hillsborough to Codigoro | 4,198.67 mi (6,757.10 km) |
| Hillsborough to Codogno | 4,084.58 mi (6,573.49 km) |
| Hillsborough to Codroipo | 4,196.67 mi (6,753.89 km) |
| Hillsborough to Cogoleto | 4,063.83 mi (6,540.11 km) |
| Hillsborough to Colle di Val d'Elsa | 4,205.28 mi (6,767.74 km) |
| Hillsborough to Colle Salvetti | 4,170.12 mi (6,711.16 km) |
| Hillsborough to Collecchio | 4,120.06 mi (6,630.59 km) |
| Hillsborough to Colleferro | 4,346.38 mi (6,994.82 km) |
