| Idrija to Calne | 819.27 mi (1,318.49 km) |
| Idrija to Cam | 840.23 mi (1,352.22 km) |
| Idrija to Camberley | 766.10 mi (1,232.92 km) |
| Idrija to Camborne | 934.81 mi (1,504.43 km) |
| Idrija to Cambridge | 759.24 mi (1,221.88 km) |
| Idrija to Cambuslang | 1,037.60 mi (1,669.86 km) |
| Idrija to Canford Cliffs | 799.27 mi (1,286.30 km) |
| Idrija to Cannock | 854.88 mi (1,375.80 km) |
| Idrija to Canterbury | 693.07 mi (1,115.38 km) |
| Idrija to Carlisle | 962.44 mi (1,548.89 km) |
| Idrija to Carlton Colville | 711.48 mi (1,145.02 km) |
| Idrija to Carluke | 1,023.56 mi (1,647.27 km) |
| Idrija to Carnoustie | 1,019.57 mi (1,640.84 km) |
| Idrija to Carshalton | 744.23 mi (1,197.72 km) |
| Idrija to Carterton | 811.14 mi (1,305.40 km) |
