| Kardzhali to Clarkston (Georgia) | 5,576.32 mi (8,974.22 km) |
| Kardzhali to Clarksville (Indiana) | 5,418.32 mi (8,719.95 km) |
| Kardzhali to Clarksville (Tennessee) | 5,565.07 mi (8,956.12 km) |
| Kardzhali to Clawson (Michigan) | 5,117.84 mi (8,236.37 km) |
| Kardzhali to Clay (Alabama) | 5,678.15 mi (9,138.09 km) |
| Kardzhali to Clayton (California) | 6,564.32 mi (10,564.24 km) |
| Kardzhali to Clayton (Missouri) | 5,574.40 mi (8,971.12 km) |
| Kardzhali to Clayton (North Carolina) | 5,249.00 mi (8,447.44 km) |
| Kardzhali to Clayton (Ohio) | 5,288.54 mi (8,511.09 km) |
| Kardzhali to Clearfield (Utah) | 6,129.29 mi (9,864.14 km) |
| Kardzhali to Clearlake (California) | 6,515.11 mi (10,485.06 km) |
| Kardzhali to Clearwater (Florida) | 5,796.16 mi (9,328.01 km) |
| Kardzhali to Cleburne (Texas) | 6,163.29 mi (9,918.86 km) |
| Kardzhali to Clemmons (North Carolina) | 5,312.36 mi (8,549.41 km) |
| Kardzhali to Clemson (South Carolina) | 5,475.84 mi (8,812.50 km) |
