| Hemel Hempstead to Cernavoda | 1,401.64 mi (2,255.73 km) |
| Hemel Hempstead to Chitila | 1,309.33 mi (2,107.17 km) |
| Hemel Hempstead to Cisnadie | 1,190.09 mi (1,915.26 km) |
| Hemel Hempstead to Cluj-Napoca | 1,131.95 mi (1,821.70 km) |
| Hemel Hempstead to Codlea | 1,245.08 mi (2,003.76 km) |
| Hemel Hempstead to Comanesti | 1,264.04 mi (2,034.27 km) |
| Hemel Hempstead to Comarnic | 1,268.35 mi (2,041.21 km) |
| Hemel Hempstead to Constanta | 1,433.12 mi (2,306.38 km) |
| Hemel Hempstead to Corabia | 1,275.67 mi (2,052.99 km) |
| Hemel Hempstead to Costesti | 1,257.41 mi (2,023.61 km) |
| Hemel Hempstead to Covasna | 1,271.37 mi (2,046.07 km) |
| Hemel Hempstead to Craiova | 1,225.81 mi (1,972.75 km) |
| Hemel Hempstead to Cristuru Secuiesc | 1,208.35 mi (1,944.65 km) |
| Hemel Hempstead to Cugir | 1,152.60 mi (1,854.94 km) |
| Hemel Hempstead to Cumpana | 1,431.82 mi (2,304.29 km) |
