| Olton to Cortona | 896.96 mi (1,443.52 km) |
| Olton to Cosenza | 1,249.57 mi (2,011.00 km) |
| Olton to Cossato | 654.37 mi (1,053.10 km) |
| Olton to Costa Volpino | 704.16 mi (1,133.24 km) |
| Olton to Creazzo | 766.51 mi (1,233.59 km) |
| Olton to Crema | 713.27 mi (1,147.90 km) |
| Olton to Cremona | 736.66 mi (1,185.54 km) |
| Olton to Crevalcore | 794.94 mi (1,279.33 km) |
| Olton to Crispiano | 1,213.14 mi (1,952.36 km) |
| Olton to Crosia | 1,252.07 mi (2,015.00 km) |
| Olton to Crotone | 1,289.86 mi (2,075.83 km) |
| Olton to Cuneo | 701.52 mi (1,128.98 km) |
| Olton to Cuorgne | 648.15 mi (1,043.10 km) |
| Olton to Cusano Milanino | 687.57 mi (1,106.53 km) |
| Olton to Cutro | 1,288.18 mi (2,073.12 km) |
