| Gladstone to Cividale del Friuli | 5,055.33 mi (8,135.76 km) |
| Gladstone to Civita Castellana | 5,184.57 mi (8,343.77 km) |
| Gladstone to Civitanova Marche | 5,191.09 mi (8,354.26 km) |
| Gladstone to Civitavecchia | 5,169.24 mi (8,319.09 km) |
| Gladstone to Civitella in Val di Chiana | 5,108.17 mi (8,220.80 km) |
| Gladstone to Clusone | 4,934.13 mi (7,940.71 km) |
| Gladstone to Coccaglio | 4,948.74 mi (7,964.23 km) |
| Gladstone to Codigoro | 5,061.62 mi (8,145.89 km) |
| Gladstone to Codogno | 4,955.32 mi (7,974.81 km) |
| Gladstone to Codroipo | 5,044.57 mi (8,118.46 km) |
| Gladstone to Cogoleto | 4,946.58 mi (7,960.75 km) |
| Gladstone to Colle di Val d'Elsa | 5,086.18 mi (8,185.41 km) |
| Gladstone to Colle Salvetti | 5,052.12 mi (8,130.61 km) |
| Gladstone to Collecchio | 4,992.46 mi (8,034.59 km) |
| Gladstone to Colleferro | 5,233.45 mi (8,422.42 km) |
