| Hemel Hempstead to Cloverly (Maryland) | 3,634.88 mi (5,849.78 km) |
| Hemel Hempstead to Clovis (California) | 5,304.14 mi (8,536.20 km) |
| Hemel Hempstead to Clovis (New Mexico) | 4,880.04 mi (7,853.66 km) |
| Hemel Hempstead to Clute (Texas) | 4,867.97 mi (7,834.24 km) |
| Hemel Hempstead to Coachella (California) | 5,370.79 mi (8,643.45 km) |
| Hemel Hempstead to Coalinga (California) | 5,363.32 mi (8,631.43 km) |
| Hemel Hempstead to Coamo (Puerto Rico) | 4,218.19 mi (6,788.52 km) |
| Hemel Hempstead to Coatesville (Pennsylvania) | 3,547.69 mi (5,709.46 km) |
| Hemel Hempstead to Cockeysville (Maryland) | 3,603.04 mi (5,798.54 km) |
| Hemel Hempstead to Cocoa (Florida) | 4,303.38 mi (6,925.62 km) |
| Hemel Hempstead to Cocoa Beach (Florida) | 4,299.98 mi (6,920.14 km) |
| Hemel Hempstead to Coconut Creek (Florida) | 4,384.64 mi (7,056.40 km) |
| Hemel Hempstead to Coeur d'Alene (Idaho) | 4,605.88 mi (7,412.44 km) |
| Hemel Hempstead to Cohoes (New York) | 3,341.74 mi (5,378.01 km) |
| Hemel Hempstead to Cold Springs (Nevada) | 5,148.64 mi (8,285.94 km) |
