| Irmo to Castrovillari | 5,106.69 mi (8,218.43 km) |
| Irmo to Catania | 5,138.63 mi (8,269.83 km) |
| Irmo to Catanzaro | 5,158.01 mi (8,301.01 km) |
| Irmo to Cattolica | 4,809.62 mi (7,740.33 km) |
| Irmo to Cava de' Tirreni | 5,007.52 mi (8,058.82 km) |
| Irmo to Cavallino | 5,178.44 mi (8,333.90 km) |
| Irmo to Cavarzere | 4,743.51 mi (7,633.94 km) |
| Irmo to Cave | 4,889.61 mi (7,869.07 km) |
| Irmo to Cavriago | 4,689.78 mi (7,547.47 km) |
| Irmo to Cavriglia | 4,769.04 mi (7,675.03 km) |
| Irmo to Cazzago San Martino | 4,640.56 mi (7,468.25 km) |
| Irmo to Ceccano | 4,916.05 mi (7,911.62 km) |
| Irmo to Cecina | 4,732.34 mi (7,615.96 km) |
| Irmo to Cefalu | 5,069.39 mi (8,158.40 km) |
| Irmo to Ceglie Messapico | 5,135.04 mi (8,264.05 km) |
