| Idrija to Crosby | 917.03 mi (1,475.82 km) |
| Idrija to Crowborough | 722.72 mi (1,163.11 km) |
| Idrija to Croxley Green | 763.20 mi (1,228.25 km) |
| Idrija to Croydon | 742.18 mi (1,194.42 km) |
| Idrija to Cudworth | 862.09 mi (1,387.39 km) |
| Idrija to Culcheth | 897.25 mi (1,443.99 km) |
| Idrija to Cullercoats | 918.58 mi (1,478.32 km) |
| Idrija to Cumbernauld | 1,036.82 mi (1,668.60 km) |
| Idrija to Cumnock | 1,027.19 mi (1,653.11 km) |
| Idrija to Cupar | 1,021.01 mi (1,643.15 km) |
| Idrija to Cwmbran | 865.36 mi (1,392.67 km) |
| Idrija to Dagenham | 737.25 mi (1,186.49 km) |
| Idrija to Dalkeith | 1,005.13 mi (1,617.60 km) |
| Idrija to Darfield | 859.46 mi (1,383.17 km) |
| Idrija to Darlaston | 851.94 mi (1,371.07 km) |
