| Hemel Hempstead to Camas (Washington) | 4,879.34 mi (7,852.54 km) |
| Hemel Hempstead to Cambridge (Maryland) | 3,622.40 mi (5,829.69 km) |
| Hemel Hempstead to Cambridge (Massachusetts) | 3,253.60 mi (5,236.16 km) |
| Hemel Hempstead to Camden (Arkansas) | 4,533.71 mi (7,296.30 km) |
| Hemel Hempstead to Camden (New Jersey) | 3,520.88 mi (5,666.30 km) |
| Hemel Hempstead to Cameron Park (California) | 5,237.21 mi (8,428.48 km) |
| Hemel Hempstead to Camp Pendleton South (California) | 5,437.68 mi (8,751.11 km) |
| Hemel Hempstead to Camp Springs (Maryland) | 3,645.25 mi (5,866.46 km) |
| Hemel Hempstead to Camp Verde (Arizona) | 5,178.33 mi (8,333.72 km) |
| Hemel Hempstead to Campbell (California) | 5,346.63 mi (8,604.57 km) |
| Hemel Hempstead to Campbellsville (Kentucky) | 4,052.16 mi (6,521.32 km) |
| Hemel Hempstead to Campton Hills (Illinois) | 3,953.22 mi (6,362.10 km) |
| Hemel Hempstead to Canby (Oregon) | 4,905.51 mi (7,894.66 km) |
| Hemel Hempstead to Candelaria (Puerto Rico) | 4,194.71 mi (6,750.73 km) |
| Hemel Hempstead to Candler-McAfee (Georgia) | 4,183.77 mi (6,733.13 km) |
