| Idanha-a-Nova to Collegno | 832.61 mi (1,339.96 km) |
| Idanha-a-Nova to Cologno al Serio | 941.69 mi (1,515.51 km) |
| Idanha-a-Nova to Cologno Monzese | 921.16 mi (1,482.47 km) |
| Idanha-a-Nova to Colorno | 960.57 mi (1,545.89 km) |
| Idanha-a-Nova to Comacchio | 1,042.72 mi (1,678.09 km) |
| Idanha-a-Nova to Comiso | 1,196.21 mi (1,925.11 km) |
| Idanha-a-Nova to Como | 919.01 mi (1,479.00 km) |
| Idanha-a-Nova to Concordia Sagittaria | 1,091.07 mi (1,755.91 km) |
| Idanha-a-Nova to Concorezzo | 925.18 mi (1,488.93 km) |
| Idanha-a-Nova to Conegliano | 1,067.56 mi (1,718.08 km) |
| Idanha-a-Nova to Conselice | 1,023.31 mi (1,646.86 km) |
| Idanha-a-Nova to Conselve | 1,035.82 mi (1,666.99 km) |
| Idanha-a-Nova to Conversano | 1,278.34 mi (2,057.30 km) |
| Idanha-a-Nova to Copertino | 1,332.08 mi (2,143.77 km) |
| Idanha-a-Nova to Copparo | 1,028.88 mi (1,655.83 km) |
