| Omurtag to Carson (California) | 6,672.03 mi (10,737.60 km) |
| Omurtag to Carson City (Nevada) | 6,372.57 mi (10,255.67 km) |
| Omurtag to Carteret (New Jersey) | 4,836.26 mi (7,783.21 km) |
| Omurtag to Cartersville (Georgia) | 5,562.00 mi (8,951.17 km) |
| Omurtag to Carthage (Missouri) | 5,761.48 mi (9,272.20 km) |
| Omurtag to Cary (Illinois) | 5,285.86 mi (8,506.78 km) |
| Omurtag to Cary (North Carolina) | 5,243.26 mi (8,438.21 km) |
| Omurtag to Casa de Oro-Mount Helix (California) | 6,706.81 mi (10,793.58 km) |
| Omurtag to Casa Grande (Arizona) | 6,557.81 mi (10,553.77 km) |
| Omurtag to Casas Adobes (Arizona) | 6,570.25 mi (10,573.79 km) |
| Omurtag to Cascades (Virginia) | 5,032.43 mi (8,098.91 km) |
| Omurtag to Casper (Wyoming) | 5,816.76 mi (9,361.18 km) |
| Omurtag to Casselberry (Florida) | 5,692.20 mi (9,160.72 km) |
| Omurtag to Castaic (California) | 6,640.77 mi (10,687.28 km) |
| Omurtag to Castle Pines (Colorado) | 5,971.57 mi (9,610.31 km) |
