| Sieradz to Carson (California) | 5,984.61 mi (9,631.31 km) |
| Sieradz to Carson City (Nevada) | 5,686.13 mi (9,150.95 km) |
| Sieradz to Carteret (New Jersey) | 4,212.29 mi (6,779.03 km) |
| Sieradz to Cartersville (Georgia) | 4,930.28 mi (7,934.52 km) |
| Sieradz to Carthage (Missouri) | 5,097.99 mi (8,204.43 km) |
| Sieradz to Cary (Illinois) | 4,623.57 mi (7,440.92 km) |
| Sieradz to Cary (North Carolina) | 4,624.45 mi (7,442.33 km) |
| Sieradz to Casa de Oro-Mount Helix (California) | 6,019.69 mi (9,687.75 km) |
| Sieradz to Casa Grande (Arizona) | 5,873.56 mi (9,452.59 km) |
| Sieradz to Casas Adobes (Arizona) | 5,887.03 mi (9,474.25 km) |
| Sieradz to Cascades (Virginia) | 4,405.48 mi (7,089.93 km) |
| Sieradz to Casper (Wyoming) | 5,131.16 mi (8,257.80 km) |
| Sieradz to Casselberry (Florida) | 5,092.53 mi (8,195.63 km) |
| Sieradz to Castaic (California) | 5,953.35 mi (9,580.99 km) |
| Sieradz to Castle Pines (Colorado) | 5,289.20 mi (8,512.14 km) |
