| Hemel Hempstead to River Ridge (Louisiana) | 4,612.94 mi (7,423.81 km) |
| Hemel Hempstead to Riverbank (California) | 5,290.62 mi (8,514.44 km) |
| Hemel Hempstead to Riverdale (Georgia) | 4,197.34 mi (6,754.96 km) |
| Hemel Hempstead to Riverdale (Illinois) | 3,937.91 mi (6,337.46 km) |
| Hemel Hempstead to Riverside (California) | 5,397.49 mi (8,686.42 km) |
| Hemel Hempstead to Riverside (Ohio) | 3,888.61 mi (6,258.11 km) |
| Hemel Hempstead to Riverton (Utah) | 4,854.35 mi (7,812.32 km) |
| Hemel Hempstead to Riverton (Wyoming) | 4,603.87 mi (7,409.21 km) |
| Hemel Hempstead to Riverview (Florida) | 4,395.71 mi (7,074.20 km) |
| Hemel Hempstead to Riverview (Michigan) | 3,742.96 mi (6,023.71 km) |
| Hemel Hempstead to Riviera Beach (Florida) | 4,354.69 mi (7,008.19 km) |
| Hemel Hempstead to Riviera Beach (Maryland) | 3,613.10 mi (5,814.73 km) |
| Hemel Hempstead to Roanoke (Virginia) | 3,838.86 mi (6,178.04 km) |
| Hemel Hempstead to Roanoke Rapids (North Carolina) | 3,783.39 mi (6,088.77 km) |
| Hemel Hempstead to Robbinsdale (Minnesota) | 3,989.67 mi (6,420.76 km) |
