| Knowle to Clarkston (Georgia) | 4,113.87 mi (6,620.63 km) |
| Knowle to Clarksville (Indiana) | 3,955.66 mi (6,366.03 km) |
| Knowle to Clarksville (Tennessee) | 4,102.08 mi (6,601.66 km) |
| Knowle to Clawson (Michigan) | 3,657.79 mi (5,886.64 km) |
| Knowle to Clay (Alabama) | 4,214.69 mi (6,782.88 km) |
| Knowle to Clayton (California) | 5,238.72 mi (8,430.91 km) |
| Knowle to Clayton (Missouri) | 4,116.50 mi (6,624.86 km) |
| Knowle to Clayton (North Carolina) | 3,789.74 mi (6,099.00 km) |
| Knowle to Clayton (Ohio) | 3,826.28 mi (6,157.80 km) |
| Knowle to Clearfield (Utah) | 4,755.04 mi (7,652.50 km) |
| Knowle to Clearlake (California) | 5,200.26 mi (8,369.01 km) |
| Knowle to Clearwater (Florida) | 4,345.40 mi (6,993.25 km) |
| Knowle to Cleburne (Texas) | 4,705.62 mi (7,572.96 km) |
| Knowle to Clemmons (North Carolina) | 3,850.66 mi (6,197.04 km) |
| Knowle to Clemson (South Carolina) | 4,013.62 mi (6,459.30 km) |
