| Hemel Hempstead to Cromer | 110.53 mi (177.89 km) |
| Hemel Hempstead to Crosby | 161.04 mi (259.17 km) |
| Hemel Hempstead to Crowborough | 55.00 mi (88.52 km) |
| Hemel Hempstead to Croxley Green | 7.37 mi (11.86 km) |
| Hemel Hempstead to Croydon | 30.45 mi (49.00 km) |
| Hemel Hempstead to Cudworth | 132.23 mi (212.80 km) |
| Hemel Hempstead to Culcheth | 145.59 mi (234.31 km) |
| Hemel Hempstead to Cullercoats | 230.10 mi (370.31 km) |
| Hemel Hempstead to Cumbernauld | 323.24 mi (520.20 km) |
| Hemel Hempstead to Cumnock | 299.18 mi (481.48 km) |
| Hemel Hempstead to Cupar | 331.93 mi (534.19 km) |
| Hemel Hempstead to Cwmbran | 109.48 mi (176.19 km) |
| Hemel Hempstead to Dagenham | 30.06 mi (48.37 km) |
| Hemel Hempstead to Dalkeith | 305.07 mi (490.96 km) |
| Hemel Hempstead to Darfield | 129.15 mi (207.84 km) |
