| Sozopol to Carson (California) | 6,744.54 mi (10,854.29 km) |
| Sozopol to Carson City (Nevada) | 6,442.97 mi (10,368.96 km) |
| Sozopol to Carteret (New Jersey) | 4,916.62 mi (7,912.54 km) |
| Sozopol to Cartersville (Georgia) | 5,642.29 mi (9,080.39 km) |
| Sozopol to Carthage (Missouri) | 5,840.44 mi (9,399.28 km) |
| Sozopol to Cary (Illinois) | 5,364.88 mi (8,633.94 km) |
| Sozopol to Cary (North Carolina) | 5,323.66 mi (8,567.60 km) |
| Sozopol to Casa de Oro-Mount Helix (California) | 6,780.18 mi (10,911.64 km) |
| Sozopol to Casa Grande (Arizona) | 6,633.21 mi (10,675.13 km) |
| Sozopol to Casas Adobes (Arizona) | 6,646.05 mi (10,695.78 km) |
| Sozopol to Cascades (Virginia) | 5,112.76 mi (8,228.20 km) |
| Sozopol to Casper (Wyoming) | 5,891.48 mi (9,481.42 km) |
| Sozopol to Casselberry (Florida) | 5,772.50 mi (9,289.94 km) |
| Sozopol to Castaic (California) | 6,712.94 mi (10,803.43 km) |
| Sozopol to Castle Pines (Colorado) | 6,047.63 mi (9,732.71 km) |
