| Gladstone to Cortona | 5,124.89 mi (8,247.72 km) |
| Gladstone to Cosenza | 5,472.00 mi (8,806.33 km) |
| Gladstone to Cossato | 4,878.86 mi (7,851.77 km) |
| Gladstone to Costa Volpino | 4,942.04 mi (7,953.44 km) |
| Gladstone to Creazzo | 5,007.23 mi (8,058.36 km) |
| Gladstone to Crema | 4,945.75 mi (7,959.41 km) |
| Gladstone to Cremona | 4,969.08 mi (7,996.97 km) |
| Gladstone to Crevalcore | 5,029.79 mi (8,094.67 km) |
| Gladstone to Crispiano | 5,449.42 mi (8,769.99 km) |
| Gladstone to Crosia | 5,479.81 mi (8,818.91 km) |
| Gladstone to Crotone | 5,516.24 mi (8,877.54 km) |
| Gladstone to Cuneo | 4,903.63 mi (7,891.63 km) |
| Gladstone to Cuorgne | 4,866.07 mi (7,831.18 km) |
| Gladstone to Cusano Milanino | 4,918.81 mi (7,916.06 km) |
| Gladstone to Cutro | 5,513.35 mi (8,872.88 km) |
