| Irthlingborough to Chojnice | 758.92 mi (1,221.36 km) |
| Irthlingborough to Chojnow | 709.30 mi (1,141.50 km) |
| Irthlingborough to Chorzow | 853.72 mi (1,373.93 km) |
| Irthlingborough to Choszczno | 671.61 mi (1,080.85 km) |
| Irthlingborough to Chrzanow | 876.14 mi (1,410.01 km) |
| Irthlingborough to Ciechanow | 889.28 mi (1,431.16 km) |
| Irthlingborough to Ciechocinek | 812.39 mi (1,307.42 km) |
| Irthlingborough to Cieszyn | 852.22 mi (1,371.52 km) |
| Irthlingborough to Czarna Bialostocka | 995.60 mi (1,602.27 km) |
| Irthlingborough to Czarnkow | 720.17 mi (1,159.01 km) |
| Irthlingborough to Czechowice-Dziedzice | 864.27 mi (1,390.91 km) |
| Irthlingborough to Czeladz | 858.68 mi (1,381.91 km) |
| Irthlingborough to Czersk Pomorski | 776.23 mi (1,249.21 km) |
| Irthlingborough to Czestochowa | 851.31 mi (1,370.05 km) |
| Irthlingborough to Czluchow | 751.42 mi (1,209.30 km) |
