| Langenfeld to River Ridge (Louisiana) | 4,925.36 mi (7,926.60 km) |
| Langenfeld to Riverbank (California) | 5,536.67 mi (8,910.41 km) |
| Langenfeld to Riverdale (Georgia) | 4,511.44 mi (7,260.46 km) |
| Langenfeld to Riverdale (Illinois) | 4,237.54 mi (6,819.66 km) |
| Langenfeld to Riverside (California) | 5,659.25 mi (9,107.68 km) |
| Langenfeld to Riverside (Ohio) | 4,195.33 mi (6,751.73 km) |
| Langenfeld to Riverton (Utah) | 5,115.52 mi (8,232.63 km) |
| Langenfeld to Riverton (Wyoming) | 4,867.02 mi (7,832.71 km) |
| Langenfeld to Riverview (Florida) | 4,715.59 mi (7,589.00 km) |
| Langenfeld to Riverview (Michigan) | 4,046.91 mi (6,512.87 km) |
| Langenfeld to Riviera Beach (Florida) | 4,675.97 mi (7,525.24 km) |
| Langenfeld to Riviera Beach (Maryland) | 3,927.66 mi (6,320.96 km) |
| Langenfeld to Roanoke (Virginia) | 4,152.79 mi (6,683.27 km) |
| Langenfeld to Roanoke Rapids (North Carolina) | 4,099.93 mi (6,598.20 km) |
| Langenfeld to Robbinsdale (Minnesota) | 4,274.78 mi (6,879.59 km) |
