| Olton to Collegno | 663.04 mi (1,067.07 km) |
| Olton to Cologno al Serio | 702.89 mi (1,131.19 km) |
| Olton to Cologno Monzese | 691.76 mi (1,113.27 km) |
| Olton to Colorno | 758.40 mi (1,220.53 km) |
| Olton to Comacchio | 831.10 mi (1,337.53 km) |
| Olton to Comiso | 1,332.89 mi (2,145.07 km) |
| Olton to Como | 671.16 mi (1,080.13 km) |
| Olton to Concordia Sagittaria | 805.06 mi (1,295.63 km) |
| Olton to Concorezzo | 690.53 mi (1,111.30 km) |
| Olton to Conegliano | 779.42 mi (1,254.36 km) |
| Olton to Conselice | 828.10 mi (1,332.70 km) |
| Olton to Conselve | 794.28 mi (1,278.27 km) |
| Olton to Conversano | 1,190.14 mi (1,915.34 km) |
| Olton to Copertino | 1,258.81 mi (2,025.86 km) |
| Olton to Copparo | 809.20 mi (1,302.28 km) |
