| Rio Maior to Collegno | 931.04 mi (1,498.37 km) |
| Rio Maior to Cologno al Serio | 1,040.13 mi (1,673.93 km) |
| Rio Maior to Cologno Monzese | 1,019.57 mi (1,640.84 km) |
| Rio Maior to Colorno | 1,059.45 mi (1,705.02 km) |
| Rio Maior to Comacchio | 1,141.73 mi (1,837.44 km) |
| Rio Maior to Comiso | 1,285.68 mi (2,069.11 km) |
| Rio Maior to Como | 1,017.14 mi (1,636.93 km) |
| Rio Maior to Concordia Sagittaria | 1,189.79 mi (1,914.78 km) |
| Rio Maior to Concorezzo | 1,023.55 mi (1,647.24 km) |
| Rio Maior to Conegliano | 1,166.16 mi (1,876.76 km) |
| Rio Maior to Conselice | 1,122.34 mi (1,806.24 km) |
| Rio Maior to Conselve | 1,134.69 mi (1,826.11 km) |
| Rio Maior to Conversano | 1,375.27 mi (2,213.28 km) |
| Rio Maior to Copertino | 1,428.28 mi (2,298.59 km) |
| Rio Maior to Copparo | 1,127.85 mi (1,815.10 km) |
