| Idanha-a-Nova to Celano | 1,091.67 mi (1,756.87 km) |
| Idanha-a-Nova to Cento | 1,000.04 mi (1,609.40 km) |
| Idanha-a-Nova to Cepagatti | 1,118.13 mi (1,799.46 km) |
| Idanha-a-Nova to Ceprano | 1,089.58 mi (1,753.51 km) |
| Idanha-a-Nova to Cercola | 1,134.81 mi (1,826.30 km) |
| Idanha-a-Nova to Cerea | 1,004.61 mi (1,616.76 km) |
| Idanha-a-Nova to Cerese | 979.96 mi (1,577.10 km) |
| Idanha-a-Nova to Cerignola | 1,213.72 mi (1,953.29 km) |
| Idanha-a-Nova to Cermenate | 916.24 mi (1,474.55 km) |
| Idanha-a-Nova to Cernusco sul Naviglio | 923.41 mi (1,486.09 km) |
| Idanha-a-Nova to Cerreto Guidi | 967.48 mi (1,557.01 km) |
| Idanha-a-Nova to Cerro Maggiore | 907.83 mi (1,461.01 km) |
| Idanha-a-Nova to Certaldo | 972.85 mi (1,565.66 km) |
| Idanha-a-Nova to Cerveteri | 1,016.77 mi (1,636.33 km) |
| Idanha-a-Nova to Cervia | 1,045.37 mi (1,682.36 km) |
