| Isernia to Chitila | 625.21 mi (1,006.17 km) |
| Isernia to Cisnadie | 570.44 mi (918.04 km) |
| Isernia to Cluj-Napoca | 583.81 mi (939.54 km) |
| Isernia to Codlea | 626.74 mi (1,008.64 km) |
| Isernia to Comanesti | 691.24 mi (1,112.45 km) |
| Isernia to Comarnic | 624.18 mi (1,004.52 km) |
| Isernia to Constanta | 748.84 mi (1,205.14 km) |
| Isernia to Corabia | 542.00 mi (872.26 km) |
| Isernia to Costesti | 576.26 mi (927.40 km) |
| Isernia to Covasna | 663.78 mi (1,068.26 km) |
| Isernia to Craiova | 519.25 mi (835.65 km) |
| Isernia to Cristuru Secuiesc | 626.37 mi (1,008.05 km) |
| Isernia to Cugir | 541.15 mi (870.90 km) |
| Isernia to Cumpana | 744.49 mi (1,198.13 km) |
| Isernia to Curtea de Arges | 577.88 mi (930.01 km) |
