| Knowle to Caño Martin Peña (Puerto Rico) | 4,139.34 mi (6,661.62 km) |
| Knowle to Cañon City (Colorado) | 4,670.92 mi (7,517.13 km) |
| Knowle to Canóvanas (Puerto Rico) | 4,136.38 mi (6,656.86 km) |
| Knowle to Canton (Georgia) | 4,102.52 mi (6,602.37 km) |
| Knowle to Canton (Illinois) | 4,012.57 mi (6,457.61 km) |
| Knowle to Canton (Mississippi) | 4,405.89 mi (7,090.59 km) |
| Knowle to Canton (Ohio) | 3,666.96 mi (5,901.40 km) |
| Knowle to Canyon (Texas) | 4,735.73 mi (7,621.42 km) |
| Knowle to Canyon Lake (California) | 5,338.13 mi (8,590.89 km) |
| Knowle to Canyon Lake (Texas) | 4,868.50 mi (7,835.09 km) |
| Knowle to Cape Coral (Florida) | 4,381.68 mi (7,051.64 km) |
| Knowle to Cape Girardeau (Missouri) | 4,152.18 mi (6,682.29 km) |
| Knowle to Carbondale (Illinois) | 4,119.05 mi (6,628.97 km) |
| Knowle to Carlisle (Pennsylvania) | 3,529.23 mi (5,679.74 km) |
| Knowle to Carlsbad (California) | 5,371.00 mi (8,643.78 km) |
