| Kardzhali to Red Bank (New Jersey) | 4,857.98 mi (7,818.16 km) |
| Kardzhali to Red Bank (Tennessee) | 5,555.95 mi (8,941.44 km) |
| Kardzhali to Red Bluff (California) | 6,429.84 mi (10,347.82 km) |
| Kardzhali to Red Hill (South Carolina) | 5,359.51 mi (8,625.29 km) |
| Kardzhali to Red Oak (Texas) | 6,131.37 mi (9,867.49 km) |
| Kardzhali to Red Wing (Minnesota) | 5,352.98 mi (8,614.78 km) |
| Kardzhali to Redan (Georgia) | 5,576.71 mi (8,974.85 km) |
| Kardzhali to Redding (California) | 6,407.35 mi (10,311.63 km) |
| Kardzhali to Redland (Maryland) | 5,037.64 mi (8,107.30 km) |
| Kardzhali to Redlands (California) | 6,691.78 mi (10,769.38 km) |
| Kardzhali to Redmond (Oregon) | 6,149.73 mi (9,897.03 km) |
| Kardzhali to Redmond (Washington) | 5,952.52 mi (9,579.65 km) |
| Kardzhali to Redondo Beach (California) | 6,734.91 mi (10,838.79 km) |
| Kardzhali to Redwood City (California) | 6,598.51 mi (10,619.27 km) |
| Kardzhali to Reedley (California) | 6,591.28 mi (10,607.64 km) |
