| Didcot to Carmignano | 781.92 mi (1,258.38 km) |
| Didcot to Carovigno | 1,171.50 mi (1,885.34 km) |
| Didcot to Carpenedolo | 685.41 mi (1,103.05 km) |
| Didcot to Carpi | 729.15 mi (1,173.45 km) |
| Didcot to Carrara | 738.03 mi (1,187.75 km) |
| Didcot to Carugate | 638.20 mi (1,027.09 km) |
| Didcot to Casal di Principe | 1,032.19 mi (1,661.15 km) |
| Didcot to Casale Monferrato | 629.98 mi (1,013.85 km) |
| Didcot to Casale sul Sile | 744.40 mi (1,197.99 km) |
| Didcot to Casalecchio di Reno | 757.71 mi (1,219.41 km) |
| Didcot to Casalgrande | 733.73 mi (1,180.83 km) |
| Didcot to Casalmaggiore | 702.99 mi (1,131.36 km) |
| Didcot to Casalnuovo di Napoli | 1,044.73 mi (1,681.33 km) |
| Didcot to Casalpusterlengo | 667.28 mi (1,073.89 km) |
| Didcot to Casaluce | 1,035.30 mi (1,666.16 km) |
