| Penwortham to Clarkston (Georgia) | 4,048.15 mi (6,514.86 km) |
| Penwortham to Clarksville (Indiana) | 3,883.66 mi (6,250.15 km) |
| Penwortham to Clarksville (Tennessee) | 4,030.61 mi (6,486.65 km) |
| Penwortham to Clawson (Michigan) | 3,583.16 mi (5,766.55 km) |
| Penwortham to Clay (Alabama) | 4,146.87 mi (6,673.74 km) |
| Penwortham to Clayton (California) | 5,143.75 mi (8,278.07 km) |
| Penwortham to Clayton (Missouri) | 4,040.51 mi (6,502.58 km) |
| Penwortham to Clayton (North Carolina) | 3,727.45 mi (5,998.75 km) |
| Penwortham to Clayton (Ohio) | 3,753.75 mi (6,041.08 km) |
| Penwortham to Clearfield (Utah) | 4,663.42 mi (7,505.06 km) |
| Penwortham to Clearlake (California) | 5,104.62 mi (8,215.10 km) |
| Penwortham to Clearwater (Florida) | 4,287.63 mi (6,900.27 km) |
| Penwortham to Cleburne (Texas) | 4,629.60 mi (7,450.62 km) |
| Penwortham to Clemmons (North Carolina) | 3,786.05 mi (6,093.05 km) |
| Penwortham to Clemson (South Carolina) | 3,948.28 mi (6,354.14 km) |
