| Didcot to Brezovica | 807.93 mi (1,300.24 km) |
| Didcot to Cankova | 847.09 mi (1,363.26 km) |
| Didcot to Celje | 833.78 mi (1,341.84 km) |
| Didcot to Cerklje na Gorenjskem | 801.88 mi (1,290.51 km) |
| Didcot to Cerknica | 814.39 mi (1,310.63 km) |
| Didcot to Cerkno | 786.86 mi (1,266.32 km) |
| Didcot to Cerkvenjak | 849.33 mi (1,366.87 km) |
| Didcot to Cirkulane | 859.31 mi (1,382.93 km) |
| Didcot to Crensovci | 863.42 mi (1,389.53 km) |
| Didcot to Crna na Koroskem | 808.28 mi (1,300.80 km) |
| Didcot to Crnomelj | 856.15 mi (1,377.84 km) |
| Didcot to Destrnik | 849.36 mi (1,366.92 km) |
| Didcot to Divaca | 803.79 mi (1,293.57 km) |
| Didcot to Dobje | 842.58 mi (1,356.00 km) |
| Didcot to Dobrna | 828.47 mi (1,333.29 km) |
