| Irmo to Chojnice | 4,686.75 mi (7,542.60 km) |
| Irmo to Chojnow | 4,704.95 mi (7,571.89 km) |
| Irmo to Chorzow | 4,852.59 mi (7,809.49 km) |
| Irmo to Choszczno | 4,625.57 mi (7,444.14 km) |
| Irmo to Chrzanow | 4,875.58 mi (7,846.49 km) |
| Irmo to Ciechanow | 4,826.02 mi (7,766.73 km) |
| Irmo to Ciechocinek | 4,758.43 mi (7,657.95 km) |
| Irmo to Cieszyn | 4,859.40 mi (7,820.44 km) |
| Irmo to Czarna Bialostocka | 4,904.65 mi (7,893.27 km) |
| Irmo to Czarnkow | 4,676.51 mi (7,526.11 km) |
| Irmo to Czechowice-Dziedzice | 4,868.15 mi (7,834.53 km) |
| Irmo to Czeladz | 4,856.53 mi (7,815.84 km) |
| Irmo to Czersk Pomorski | 4,699.03 mi (7,562.35 km) |
| Irmo to Czestochowa | 4,841.68 mi (7,791.93 km) |
| Irmo to Czluchow | 4,681.19 mi (7,533.65 km) |
