| Momchilgrad to Carson (California) | 6,741.36 mi (10,849.17 km) |
| Momchilgrad to Carson City (Nevada) | 6,447.51 mi (10,376.26 km) |
| Momchilgrad to Carteret (New Jersey) | 4,861.37 mi (7,823.62 km) |
| Momchilgrad to Cartersville (Georgia) | 5,589.08 mi (8,994.76 km) |
| Momchilgrad to Carthage (Missouri) | 5,804.13 mi (9,340.85 km) |
| Momchilgrad to Cary (Illinois) | 5,328.33 mi (8,575.11 km) |
| Momchilgrad to Cary (North Carolina) | 5,265.67 mi (8,474.27 km) |
| Momchilgrad to Casa de Oro-Mount Helix (California) | 6,773.65 mi (10,901.13 km) |
| Momchilgrad to Casa Grande (Arizona) | 6,617.91 mi (10,650.49 km) |
| Momchilgrad to Casas Adobes (Arizona) | 6,628.83 mi (10,668.07 km) |
| Momchilgrad to Cascades (Virginia) | 5,058.38 mi (8,140.68 km) |
| Momchilgrad to Casper (Wyoming) | 5,879.64 mi (9,462.37 km) |
| Momchilgrad to Casselberry (Florida) | 5,706.85 mi (9,184.28 km) |
| Momchilgrad to Castaic (California) | 6,711.05 mi (10,800.39 km) |
| Momchilgrad to Castle Pines (Colorado) | 6,029.41 mi (9,703.40 km) |
