| Sieradz to Cognac | 957.98 mi (1,541.72 km) |
| Sieradz to Cogolin | 809.71 mi (1,303.10 km) |
| Sieradz to Colmar | 562.10 mi (904.62 km) |
| Sieradz to Colombes | 750.02 mi (1,207.03 km) |
| Sieradz to Colomiers | 977.14 mi (1,572.55 km) |
| Sieradz to Combs-la-Ville | 743.29 mi (1,196.21 km) |
| Sieradz to Comines | 682.96 mi (1,099.11 km) |
| Sieradz to Compiegne | 714.42 mi (1,149.74 km) |
| Sieradz to Concarneau | 1,039.82 mi (1,673.43 km) |
| Sieradz to Conde-sur-l'Escaut | 662.37 mi (1,065.99 km) |
| Sieradz to Conflans-Sainte-Honorine | 754.75 mi (1,214.66 km) |
| Sieradz to Corbas | 751.65 mi (1,209.66 km) |
| Sieradz to Corbeil-Essonnes | 748.04 mi (1,203.86 km) |
| Sieradz to Cormeilles-en-Parisis | 750.97 mi (1,208.56 km) |
| Sieradz to Cosne sur Loire | 764.81 mi (1,230.85 km) |
