| Penwortham to Cloverly (Maryland) | 3,505.18 mi (5,641.04 km) |
| Penwortham to Clovis (California) | 5,141.55 mi (8,274.52 km) |
| Penwortham to Clovis (New Mexico) | 4,729.36 mi (7,611.17 km) |
| Penwortham to Clute (Texas) | 4,730.44 mi (7,612.90 km) |
| Penwortham to Coachella (California) | 5,211.31 mi (8,386.80 km) |
| Penwortham to Coalinga (California) | 5,200.69 mi (8,369.70 km) |
| Penwortham to Coamo (Puerto Rico) | 4,146.46 mi (6,673.08 km) |
| Penwortham to Coatesville (Pennsylvania) | 3,417.85 mi (5,500.50 km) |
| Penwortham to Cockeysville (Maryland) | 3,473.13 mi (5,589.47 km) |
| Penwortham to Cocoa (Florida) | 4,186.35 mi (6,737.28 km) |
| Penwortham to Cocoa Beach (Florida) | 4,183.24 mi (6,732.27 km) |
| Penwortham to Coconut Creek (Florida) | 4,271.89 mi (6,874.94 km) |
| Penwortham to Coeur d'Alene (Idaho) | 4,440.87 mi (7,146.89 km) |
| Penwortham to Cohoes (New York) | 3,209.21 mi (5,164.72 km) |
| Penwortham to Cold Springs (Nevada) | 4,984.98 mi (8,022.55 km) |
