| Erkrath to Carson (California) | 5,684.45 mi (9,148.24 km) |
| Erkrath to Carson City (Nevada) | 5,412.29 mi (8,710.24 km) |
| Erkrath to Carteret (New Jersey) | 3,766.97 mi (6,062.36 km) |
| Erkrath to Cartersville (Georgia) | 4,492.52 mi (7,230.01 km) |
| Erkrath to Carthage (Missouri) | 4,702.94 mi (7,568.65 km) |
| Erkrath to Cary (Illinois) | 4,227.16 mi (6,802.96 km) |
| Erkrath to Cary (North Carolina) | 4,174.68 mi (6,718.50 km) |
| Erkrath to Casa de Oro-Mount Helix (California) | 5,709.10 mi (9,187.90 km) |
| Erkrath to Casa Grande (Arizona) | 5,537.21 mi (8,911.28 km) |
| Erkrath to Casas Adobes (Arizona) | 5,545.09 mi (8,923.95 km) |
| Erkrath to Cascades (Virginia) | 3,963.00 mi (6,377.84 km) |
| Erkrath to Casper (Wyoming) | 4,807.30 mi (7,736.61 km) |
| Erkrath to Casselberry (Florida) | 4,628.76 mi (7,449.27 km) |
| Erkrath to Castaic (California) | 5,657.38 mi (9,104.68 km) |
| Erkrath to Castle Pines (Colorado) | 4,945.42 mi (7,958.89 km) |
