| Gummersbach to Carson (California) | 5,713.37 mi (9,194.78 km) |
| Gummersbach to Carson City (Nevada) | 5,440.36 mi (8,755.42 km) |
| Gummersbach to Carteret (New Jersey) | 3,798.15 mi (6,112.52 km) |
| Gummersbach to Cartersville (Georgia) | 4,523.71 mi (7,280.20 km) |
| Gummersbach to Carthage (Missouri) | 4,733.83 mi (7,618.37 km) |
| Gummersbach to Cary (Illinois) | 4,258.05 mi (6,852.67 km) |
| Gummersbach to Cary (North Carolina) | 4,205.82 mi (6,768.61 km) |
| Gummersbach to Casa de Oro-Mount Helix (California) | 5,738.30 mi (9,234.91 km) |
| Gummersbach to Casa Grande (Arizona) | 5,567.06 mi (8,959.31 km) |
| Gummersbach to Casas Adobes (Arizona) | 5,575.06 mi (8,972.19 km) |
| Gummersbach to Cascades (Virginia) | 3,994.18 mi (6,428.02 km) |
| Gummersbach to Casper (Wyoming) | 4,836.74 mi (7,783.98 km) |
| Gummersbach to Casselberry (Florida) | 4,659.71 mi (7,499.08 km) |
| Gummersbach to Castaic (California) | 5,686.17 mi (9,151.01 km) |
| Gummersbach to Castle Pines (Colorado) | 4,975.38 mi (8,007.09 km) |
