| Sieradz to Chitila | 592.36 mi (953.31 km) |
| Sieradz to Cisnadie | 475.33 mi (764.96 km) |
| Sieradz to Cluj-Napoca | 398.76 mi (641.74 km) |
| Sieradz to Codlea | 509.18 mi (819.44 km) |
| Sieradz to Comanesti | 498.85 mi (802.82 km) |
| Sieradz to Comarnic | 539.94 mi (868.94 km) |
| Sieradz to Constanta | 686.91 mi (1,105.47 km) |
| Sieradz to Corabia | 602.89 mi (970.26 km) |
| Sieradz to Costesti | 555.59 mi (894.13 km) |
| Sieradz to Covasna | 521.70 mi (839.59 km) |
| Sieradz to Craiova | 553.77 mi (891.21 km) |
| Sieradz to Cristuru Secuiesc | 464.26 mi (747.15 km) |
| Sieradz to Cugir | 449.69 mi (723.70 km) |
| Sieradz to Cumpana | 687.48 mi (1,106.40 km) |
| Sieradz to Curtea de Arges | 522.42 mi (840.76 km) |
