| Holt to Cordele (Georgia) | 739.46 mi (1,190.04 km) |
| Holt to Corinth (Mississippi) | 573.08 mi (922.29 km) |
| Holt to Corinth (Texas) | 945.66 mi (1,521.90 km) |
| Holt to Cornelius (North Carolina) | 532.49 mi (856.97 km) |
| Holt to Cornelius (Oregon) | 1,903.77 mi (3,063.83 km) |
| Holt to Corning (New York) | 382.81 mi (616.08 km) |
| Holt to Corona (California) | 1,878.29 mi (3,022.81 km) |
| Holt to Coronado (California) | 1,898.94 mi (3,056.04 km) |
| Holt to Corpus Christi (Texas) | 1,257.07 mi (2,023.05 km) |
| Holt to Corsicana (Texas) | 978.77 mi (1,575.17 km) |
| Holt to Cortland (New York) | 424.49 mi (683.15 km) |
| Holt to Corvallis (Oregon) | 1,924.87 mi (3,097.78 km) |
| Holt to Coshocton (Ohio) | 215.24 mi (346.39 km) |
| Holt to Costa Mesa (California) | 1,902.32 mi (3,061.49 km) |
| Holt to Coto de Caza (California) | 1,888.21 mi (3,038.78 km) |
