| Howard to Candler-McAfee (Georgia) | 776.44 mi (1,249.56 km) |
| Howard to Caño Martin Peña (Puerto Rico) | 2,208.91 mi (3,554.90 km) |
| Howard to Cañon City (Colorado) | 979.56 mi (1,576.44 km) |
| Howard to Canóvanas (Puerto Rico) | 2,217.55 mi (3,568.80 km) |
| Howard to Canton (Georgia) | 738.56 mi (1,188.60 km) |
| Howard to Canton (Illinois) | 294.05 mi (473.23 km) |
| Howard to Canton (Mississippi) | 833.77 mi (1,341.83 km) |
| Howard to Canton (Ohio) | 428.98 mi (690.38 km) |
| Howard to Canyon (Texas) | 985.94 mi (1,586.72 km) |
| Howard to Canyon Lake (California) | 1,722.27 mi (2,771.73 km) |
| Howard to Canyon Lake (Texas) | 1,157.04 mi (1,862.08 km) |
| Howard to Cape Coral (Florida) | 1,284.09 mi (2,066.54 km) |
| Howard to Cape Girardeau (Missouri) | 507.36 mi (816.52 km) |
| Howard to Carbondale (Illinois) | 476.79 mi (767.33 km) |
| Howard to Carlisle (Pennsylvania) | 631.72 mi (1,016.66 km) |
