| Mackworth to Red Bank (New Jersey) | 3,393.79 mi (5,461.78 km) |
| Mackworth to Red Bank (Tennessee) | 4,088.10 mi (6,579.16 km) |
| Mackworth to Red Bluff (California) | 5,096.90 mi (8,202.66 km) |
| Mackworth to Red Hill (South Carolina) | 3,902.19 mi (6,279.96 km) |
| Mackworth to Red Oak (Texas) | 4,664.83 mi (7,507.31 km) |
| Mackworth to Red Wing (Minnesota) | 3,903.19 mi (6,281.58 km) |
| Mackworth to Redan (Georgia) | 4,111.31 mi (6,616.52 km) |
| Mackworth to Redding (California) | 5,077.36 mi (8,171.22 km) |
| Mackworth to Redland (Maryland) | 3,572.12 mi (5,748.76 km) |
| Mackworth to Redlands (California) | 5,296.89 mi (8,524.52 km) |
| Mackworth to Redmond (Oregon) | 4,831.01 mi (7,774.76 km) |
| Mackworth to Redmond (Washington) | 4,660.64 mi (7,500.58 km) |
| Mackworth to Redondo Beach (California) | 5,346.34 mi (8,604.11 km) |
| Mackworth to Redwood City (California) | 5,252.12 mi (8,452.47 km) |
| Mackworth to Reedley (California) | 5,221.51 mi (8,403.21 km) |
