| Penwortham to Carson (California) | 5,270.24 mi (8,481.63 km) |
| Penwortham to Carson City (Nevada) | 5,009.40 mi (8,061.85 km) |
| Penwortham to Carteret (New Jersey) | 3,327.56 mi (5,355.20 km) |
| Penwortham to Cartersville (Georgia) | 4,052.43 mi (6,521.76 km) |
| Penwortham to Carthage (Missouri) | 4,264.48 mi (6,863.01 km) |
| Penwortham to Cary (Illinois) | 3,788.81 mi (6,097.50 km) |
| Penwortham to Cary (North Carolina) | 3,736.16 mi (6,012.77 km) |
| Penwortham to Casa de Oro-Mount Helix (California) | 5,291.06 mi (8,515.14 km) |
| Penwortham to Casa Grande (Arizona) | 5,111.18 mi (8,225.65 km) |
| Penwortham to Casas Adobes (Arizona) | 5,117.40 mi (8,235.67 km) |
| Penwortham to Cascades (Virginia) | 3,523.28 mi (5,670.17 km) |
| Penwortham to Casper (Wyoming) | 4,386.91 mi (7,060.04 km) |
| Penwortham to Casselberry (Florida) | 4,194.23 mi (6,749.96 km) |
| Penwortham to Castaic (California) | 5,244.81 mi (8,440.71 km) |
| Penwortham to Castle Pines (Colorado) | 4,518.28 mi (7,271.47 km) |
