| Echt to Corinth (Mississippi) | 4,561.93 mi (7,341.71 km) |
| Echt to Corinth (Texas) | 4,980.41 mi (8,015.20 km) |
| Echt to Cornelius (North Carolina) | 4,234.23 mi (6,814.34 km) |
| Echt to Cornelius (Oregon) | 5,100.06 mi (8,207.76 km) |
| Echt to Corning (New York) | 3,771.64 mi (6,069.86 km) |
| Echt to Corona (California) | 5,637.49 mi (9,072.67 km) |
| Echt to Coronado (California) | 5,695.20 mi (9,165.54 km) |
| Echt to Corpus Christi (Texas) | 5,281.07 mi (8,499.06 km) |
| Echt to Corsicana (Texas) | 5,014.03 mi (8,069.30 km) |
| Echt to Cortland (New York) | 3,717.17 mi (5,982.20 km) |
| Echt to Corvallis (Oregon) | 5,162.21 mi (8,307.77 km) |
| Echt to Coshocton (Ohio) | 4,044.58 mi (6,509.13 km) |
| Echt to Costa Mesa (California) | 5,659.51 mi (9,108.09 km) |
| Echt to Coto de Caza (California) | 5,653.71 mi (9,098.77 km) |
| Echt to Cottage Grove (Minnesota) | 4,235.07 mi (6,815.69 km) |
