| Rietberg to Carson (California) | 5,699.53 mi (9,172.50 km) |
| Rietberg to Carson City (Nevada) | 5,422.39 mi (8,726.49 km) |
| Rietberg to Carteret (New Jersey) | 3,811.39 mi (6,133.84 km) |
| Rietberg to Cartersville (Georgia) | 4,535.39 mi (7,299.00 km) |
| Rietberg to Carthage (Missouri) | 4,736.07 mi (7,621.97 km) |
| Rietberg to Cary (Illinois) | 4,260.28 mi (6,856.25 km) |
| Rietberg to Cary (North Carolina) | 4,220.45 mi (6,792.16 km) |
| Rietberg to Casa de Oro-Mount Helix (California) | 5,726.11 mi (9,215.28 km) |
| Rietberg to Casa Grande (Arizona) | 5,558.96 mi (8,946.27 km) |
| Rietberg to Casas Adobes (Arizona) | 5,567.91 mi (8,960.69 km) |
| Rietberg to Cascades (Virginia) | 4,006.79 mi (6,448.31 km) |
| Rietberg to Casper (Wyoming) | 4,826.07 mi (7,766.82 km) |
| Rietberg to Casselberry (Florida) | 4,678.48 mi (7,529.28 km) |
| Rietberg to Castaic (California) | 5,671.67 mi (9,127.67 km) |
| Rietberg to Castle Pines (Colorado) | 4,968.16 mi (7,995.48 km) |
