| Hemel Hempstead to Red Bank (New Jersey) | 3,460.39 mi (5,568.96 km) |
| Hemel Hempstead to Red Bank (Tennessee) | 4,157.62 mi (6,691.04 km) |
| Hemel Hempstead to Red Bluff (California) | 5,187.14 mi (8,347.89 km) |
| Hemel Hempstead to Red Hill (South Carolina) | 3,965.59 mi (6,382.00 km) |
| Hemel Hempstead to Red Oak (Texas) | 4,740.24 mi (7,628.68 km) |
| Hemel Hempstead to Red Wing (Minnesota) | 3,984.44 mi (6,412.33 km) |
| Hemel Hempstead to Redan (Georgia) | 4,178.77 mi (6,725.07 km) |
| Hemel Hempstead to Redding (California) | 5,167.72 mi (8,316.64 km) |
| Hemel Hempstead to Redland (Maryland) | 3,639.61 mi (5,857.39 km) |
| Hemel Hempstead to Redlands (California) | 5,383.81 mi (8,664.40 km) |
| Hemel Hempstead to Redmond (Oregon) | 4,921.85 mi (7,920.96 km) |
| Hemel Hempstead to Redmond (Washington) | 4,752.27 mi (7,648.04 km) |
| Hemel Hempstead to Redondo Beach (California) | 5,433.67 mi (8,744.65 km) |
| Hemel Hempstead to Redwood City (California) | 5,341.75 mi (8,596.72 km) |
| Hemel Hempstead to Reedley (California) | 5,310.04 mi (8,545.68 km) |
