| Harrow Weald to Cassina de' Pecchi | 610.50 mi (982.51 km) |
| Harrow Weald to Cassino | 966.70 mi (1,555.75 km) |
| Harrow Weald to Castagneto Carducci | 774.04 mi (1,245.69 km) |
| Harrow Weald to Castano Primo | 589.27 mi (948.34 km) |
| Harrow Weald to Castel Bolognese | 752.54 mi (1,211.10 km) |
| Harrow Weald to Castel Gandolfo | 915.52 mi (1,473.38 km) |
| Harrow Weald to Castel Goffredo | 658.65 mi (1,059.99 km) |
| Harrow Weald to Castel Maggiore | 725.28 mi (1,167.23 km) |
| Harrow Weald to Castel Mella | 637.64 mi (1,026.18 km) |
| Harrow Weald to Castel San Giorgio | 1,033.55 mi (1,663.33 km) |
| Harrow Weald to Castel San Giovanni | 636.61 mi (1,024.52 km) |
| Harrow Weald to Castel San Pietro Terme | 740.99 mi (1,192.50 km) |
| Harrow Weald to Castel Volturno | 993.73 mi (1,599.25 km) |
| Harrow Weald to Castelbuono | 1,176.05 mi (1,892.66 km) |
| Harrow Weald to Casteldaccia | 1,153.01 mi (1,855.60 km) |
