| Kardzhali to Carson (California) | 6,733.08 mi (10,835.84 km) |
| Kardzhali to Carson City (Nevada) | 6,439.14 mi (10,362.79 km) |
| Kardzhali to Carteret (New Jersey) | 4,854.42 mi (7,812.44 km) |
| Kardzhali to Cartersville (Georgia) | 5,582.07 mi (8,983.48 km) |
| Kardzhali to Carthage (Missouri) | 5,796.55 mi (9,328.64 km) |
| Kardzhali to Cary (Illinois) | 5,320.74 mi (8,562.90 km) |
| Kardzhali to Cary (North Carolina) | 5,258.84 mi (8,463.29 km) |
| Kardzhali to Casa de Oro-Mount Helix (California) | 6,765.41 mi (10,887.88 km) |
| Kardzhali to Casa Grande (Arizona) | 6,609.82 mi (10,637.48 km) |
| Kardzhali to Casas Adobes (Arizona) | 6,620.78 mi (10,655.12 km) |
| Kardzhali to Cascades (Virginia) | 5,051.41 mi (8,129.46 km) |
| Kardzhali to Casper (Wyoming) | 5,871.49 mi (9,449.24 km) |
| Kardzhali to Casselberry (Florida) | 5,700.38 mi (9,173.87 km) |
| Kardzhali to Castaic (California) | 6,702.75 mi (10,787.04 km) |
| Kardzhali to Castle Pines (Colorado) | 6,021.38 mi (9,690.47 km) |
