| Ludwigsburg to Red Bank (New Jersey) | 3,928.73 mi (6,322.69 km) |
| Ludwigsburg to Red Bank (Tennessee) | 4,626.69 mi (7,445.94 km) |
| Ludwigsburg to Red Bluff (California) | 5,607.53 mi (9,024.44 km) |
| Ludwigsburg to Red Hill (South Carolina) | 4,432.07 mi (7,132.73 km) |
| Ludwigsburg to Red Oak (Texas) | 5,207.81 mi (8,381.17 km) |
| Ludwigsburg to Red Wing (Minnesota) | 4,444.69 mi (7,153.04 km) |
| Ludwigsburg to Redan (Georgia) | 4,647.36 mi (7,479.20 km) |
| Ludwigsburg to Redding (California) | 5,587.04 mi (8,991.47 km) |
| Ludwigsburg to Redland (Maryland) | 4,108.26 mi (6,611.60 km) |
| Ludwigsburg to Redlands (California) | 5,825.91 mi (9,375.90 km) |
| Ludwigsburg to Redmond (Oregon) | 5,336.48 mi (8,588.23 km) |
| Ludwigsburg to Redmond (Washington) | 5,156.94 mi (8,299.29 km) |
| Ludwigsburg to Redondo Beach (California) | 5,873.71 mi (9,452.82 km) |
| Ludwigsburg to Redwood City (California) | 5,767.19 mi (9,281.40 km) |
| Ludwigsburg to Reedley (California) | 5,743.37 mi (9,243.07 km) |
