| Sieradz to Cookeville (Tennessee) | 4,850.40 mi (7,805.97 km) |
| Sieradz to Coolidge (Arizona) | 5,865.25 mi (9,439.20 km) |
| Sieradz to Coon Rapids (Minnesota) | 4,626.38 mi (7,445.43 km) |
| Sieradz to Cooper City (Florida) | 5,191.63 mi (8,355.11 km) |
| Sieradz to Coos Bay (Oregon) | 5,510.85 mi (8,868.86 km) |
| Sieradz to Copiague (New York) | 4,176.93 mi (6,722.11 km) |
| Sieradz to Coppell (Texas) | 5,420.93 mi (8,724.15 km) |
| Sieradz to Copperas Cove (Texas) | 5,556.59 mi (8,942.47 km) |
| Sieradz to Coral Gables (Florida) | 5,209.35 mi (8,383.63 km) |
| Sieradz to Coral Springs (Florida) | 5,178.61 mi (8,334.16 km) |
| Sieradz to Coral Terrace (Florida) | 5,208.38 mi (8,382.08 km) |
| Sieradz to Coralville (Iowa) | 4,760.22 mi (7,660.83 km) |
| Sieradz to Coram (New York) | 4,152.31 mi (6,682.49 km) |
| Sieradz to Corcoran (California) | 5,874.71 mi (9,454.43 km) |
| Sieradz to Cordele (Georgia) | 5,009.93 mi (8,062.70 km) |
