| Tulcea to Clarkston (Georgia) | 5,559.77 mi (8,947.58 km) |
| Tulcea to Clarksville (Indiana) | 5,380.68 mi (8,659.37 km) |
| Tulcea to Clarksville (Tennessee) | 5,528.85 mi (8,897.82 km) |
| Tulcea to Clawson (Michigan) | 5,072.16 mi (8,162.86 km) |
| Tulcea to Clay (Alabama) | 5,654.39 mi (9,099.86 km) |
| Tulcea to Clayton (California) | 6,411.06 mi (10,317.60 km) |
| Tulcea to Clayton (Missouri) | 5,521.68 mi (8,886.29 km) |
| Tulcea to Clayton (North Carolina) | 5,243.52 mi (8,438.63 km) |
| Tulcea to Clayton (Ohio) | 5,249.52 mi (8,448.29 km) |
| Tulcea to Clearfield (Utah) | 6,001.65 mi (9,658.73 km) |
| Tulcea to Clearlake (California) | 6,357.88 mi (10,232.02 km) |
| Tulcea to Clearwater (Florida) | 5,805.54 mi (9,343.11 km) |
| Tulcea to Cleburne (Texas) | 6,107.71 mi (9,829.41 km) |
| Tulcea to Clemmons (North Carolina) | 5,299.57 mi (8,528.83 km) |
| Tulcea to Clemson (South Carolina) | 5,460.61 mi (8,788.00 km) |
