| Idanha-a-Nova to Casamassima | 1,268.04 mi (2,040.71 km) |
| Idanha-a-Nova to Casandrino | 1,129.31 mi (1,817.44 km) |
| Idanha-a-Nova to Casapulla | 1,130.51 mi (1,819.38 km) |
| Idanha-a-Nova to Casarano | 1,340.46 mi (2,157.27 km) |
| Idanha-a-Nova to Casatenovo | 926.57 mi (1,491.17 km) |
| Idanha-a-Nova to Casciana Terme | 951.76 mi (1,531.72 km) |
| Idanha-a-Nova to Cascina | 950.11 mi (1,529.05 km) |
| Idanha-a-Nova to Caselle Torinese | 838.39 mi (1,349.26 km) |
| Idanha-a-Nova to Caserta | 1,133.11 mi (1,823.57 km) |
| Idanha-a-Nova to Casier | 1,063.36 mi (1,711.31 km) |
| Idanha-a-Nova to Casorate Primo | 904.43 mi (1,455.54 km) |
| Idanha-a-Nova to Casoria | 1,132.06 mi (1,821.87 km) |
| Idanha-a-Nova to Cassano al Ionio | 1,245.59 mi (2,004.58 km) |
| Idanha-a-Nova to Cassano d'Adda | 932.19 mi (1,500.21 km) |
| Idanha-a-Nova to Cassano delle Murge | 1,260.62 mi (2,028.77 km) |
