| Knowle to Carson (California) | 5,361.70 mi (8,628.81 km) |
| Knowle to Carson City (Nevada) | 5,103.84 mi (8,213.84 km) |
| Knowle to Carteret (New Jersey) | 3,392.37 mi (5,459.49 km) |
| Knowle to Cartersville (Georgia) | 4,119.07 mi (6,629.00 km) |
| Knowle to Carthage (Missouri) | 4,342.14 mi (6,988.00 km) |
| Knowle to Cary (Illinois) | 3,866.80 mi (6,223.01 km) |
| Knowle to Cary (North Carolina) | 3,798.97 mi (6,113.85 km) |
| Knowle to Casa de Oro-Mount Helix (California) | 5,381.28 mi (8,660.33 km) |
| Knowle to Casa Grande (Arizona) | 5,198.22 mi (8,365.73 km) |
| Knowle to Casas Adobes (Arizona) | 5,203.62 mi (8,374.42 km) |
| Knowle to Cascades (Virginia) | 3,588.87 mi (5,775.73 km) |
| Knowle to Casper (Wyoming) | 4,476.56 mi (7,204.32 km) |
| Knowle to Casselberry (Florida) | 4,251.20 mi (6,841.64 km) |
| Knowle to Castaic (California) | 5,336.76 mi (8,588.69 km) |
| Knowle to Castle Pines (Colorado) | 4,604.96 mi (7,410.97 km) |
