| Kostinbrod to Carson (California) | 6,607.75 mi (10,634.15 km) |
| Kostinbrod to Carson City (Nevada) | 6,317.26 mi (10,166.65 km) |
| Kostinbrod to Carteret (New Jersey) | 4,718.07 mi (7,593.00 km) |
| Kostinbrod to Cartersville (Georgia) | 5,445.74 mi (8,764.07 km) |
| Kostinbrod to Carthage (Missouri) | 5,661.84 mi (9,111.85 km) |
| Kostinbrod to Cary (Illinois) | 5,186.04 mi (8,346.12 km) |
| Kostinbrod to Cary (North Carolina) | 5,122.51 mi (8,243.88 km) |
| Kostinbrod to Casa de Oro-Mount Helix (California) | 6,638.76 mi (10,684.05 km) |
| Kostinbrod to Casa Grande (Arizona) | 6,480.13 mi (10,428.75 km) |
| Kostinbrod to Casas Adobes (Arizona) | 6,490.49 mi (10,445.43 km) |
| Kostinbrod to Cascades (Virginia) | 4,915.06 mi (7,910.02 km) |
| Kostinbrod to Casper (Wyoming) | 5,743.13 mi (9,242.68 km) |
| Kostinbrod to Casselberry (Florida) | 5,564.52 mi (8,955.24 km) |
| Kostinbrod to Castaic (California) | 6,577.97 mi (10,586.21 km) |
| Kostinbrod to Castle Pines (Colorado) | 5,890.91 mi (9,480.50 km) |
