| Idanha-a-Nova to Castelletto sopra Ticino | 896.31 mi (1,442.47 km) |
| Idanha-a-Nova to Castelli Calepio | 951.96 mi (1,532.03 km) |
| Idanha-a-Nova to Castelnovo ne' Monti | 953.03 mi (1,533.75 km) |
| Idanha-a-Nova to Castelnuovo Berardenga | 993.93 mi (1,599.58 km) |
| Idanha-a-Nova to Castelnuovo di Porto | 1,037.56 mi (1,669.79 km) |
| Idanha-a-Nova to Castelnuovo di Verona | 987.87 mi (1,589.82 km) |
| Idanha-a-Nova to Castelnuovo Rangone | 980.45 mi (1,577.88 km) |
| Idanha-a-Nova to Castelvetrano | 1,087.00 mi (1,749.36 km) |
| Idanha-a-Nova to Castelvetro di Modena | 980.50 mi (1,577.96 km) |
| Idanha-a-Nova to Castenaso | 1,005.71 mi (1,618.54 km) |
| Idanha-a-Nova to Castenedolo | 966.79 mi (1,555.90 km) |
| Idanha-a-Nova to Castiglion Fiorentino | 1,014.57 mi (1,632.79 km) |
| Idanha-a-Nova to Castiglione del Lago | 1,019.41 mi (1,640.58 km) |
| Idanha-a-Nova to Castiglione delle Stiviere | 974.81 mi (1,568.81 km) |
| Idanha-a-Nova to Castrolibero | 1,244.33 mi (2,002.56 km) |
