| Harrow to Cassina de' Pecchi | 609.85 mi (981.45 km) |
| Harrow to Cassino | 966.02 mi (1,554.66 km) |
| Harrow to Castagneto Carducci | 773.27 mi (1,244.46 km) |
| Harrow to Castano Primo | 588.58 mi (947.22 km) |
| Harrow to Castel Bolognese | 751.94 mi (1,210.13 km) |
| Harrow to Castel Gandolfo | 914.79 mi (1,472.21 km) |
| Harrow to Castel Goffredo | 658.05 mi (1,059.03 km) |
| Harrow to Castel Maggiore | 724.68 mi (1,166.25 km) |
| Harrow to Castel Mella | 637.04 mi (1,025.22 km) |
| Harrow to Castel San Giorgio | 1,032.88 mi (1,662.25 km) |
| Harrow to Castel San Giovanni | 635.91 mi (1,023.41 km) |
| Harrow to Castel San Pietro Terme | 740.38 mi (1,191.53 km) |
| Harrow to Castel Volturno | 993.03 mi (1,598.13 km) |
| Harrow to Castelbuono | 1,175.22 mi (1,891.33 km) |
| Harrow to Casteldaccia | 1,152.16 mi (1,854.22 km) |
