| Penwortham to Caguas (Puerto Rico) | 4,124.91 mi (6,638.40 km) |
| Penwortham to Cahokia (Illinois) | 4,038.82 mi (6,499.85 km) |
| Penwortham to Calabasas (California) | 5,265.88 mi (8,474.61 km) |
| Penwortham to Caldwell (Idaho) | 4,663.02 mi (7,504.41 km) |
| Penwortham to Caledonia (Wisconsin) | 3,747.13 mi (6,030.42 km) |
| Penwortham to Calera (Alabama) | 4,181.14 mi (6,728.89 km) |
| Penwortham to Calexico (California) | 5,247.75 mi (8,445.44 km) |
| Penwortham to Calhoun (Georgia) | 4,041.42 mi (6,504.04 km) |
| Penwortham to California (Maryland) | 3,523.27 mi (5,670.16 km) |
| Penwortham to California City (California) | 5,182.09 mi (8,339.78 km) |
| Penwortham to Callaway (Florida) | 4,287.70 mi (6,900.39 km) |
| Penwortham to Calumet City (Illinois) | 3,791.63 mi (6,102.03 km) |
| Penwortham to Calverton (Maryland) | 3,505.46 mi (5,641.49 km) |
| Penwortham to Camano (Washington) | 4,566.35 mi (7,348.84 km) |
| Penwortham to Camarillo (California) | 5,272.28 mi (8,484.91 km) |
