| Penafiel to Carson (California) | 5,608.79 mi (9,026.47 km) |
| Penafiel to Carson City (Nevada) | 5,411.40 mi (8,708.81 km) |
| Penafiel to Carteret (New Jersey) | 3,357.05 mi (5,402.66 km) |
| Penafiel to Cartersville (Georgia) | 4,076.27 mi (6,560.13 km) |
| Penafiel to Carthage (Missouri) | 4,418.04 mi (7,110.15 km) |
| Penafiel to Cary (Illinois) | 3,961.54 mi (6,375.48 km) |
| Penafiel to Cary (North Carolina) | 3,727.24 mi (5,998.41 km) |
| Penafiel to Casa de Oro-Mount Helix (California) | 5,606.98 mi (9,023.56 km) |
| Penafiel to Casa Grande (Arizona) | 5,378.10 mi (8,655.22 km) |
| Penafiel to Casas Adobes (Arizona) | 5,371.15 mi (8,644.03 km) |
| Penafiel to Cascades (Virginia) | 3,553.82 mi (5,719.33 km) |
| Penafiel to Casper (Wyoming) | 4,714.48 mi (7,587.23 km) |
| Penafiel to Casselberry (Florida) | 4,106.30 mi (6,608.45 km) |
| Penafiel to Castaic (California) | 5,593.02 mi (9,001.09 km) |
| Penafiel to Castle Pines (Colorado) | 4,794.11 mi (7,715.37 km) |
