| Harrow to Busto Arsizio | 588.13 mi (946.51 km) |
| Harrow to Busto Garolfo | 592.56 mi (953.63 km) |
| Harrow to Cabras | 910.14 mi (1,464.73 km) |
| Harrow to Cadelbosco di Sopra | 688.74 mi (1,108.42 km) |
| Harrow to Cadoneghe | 702.36 mi (1,130.35 km) |
| Harrow to Cagli | 819.50 mi (1,318.85 km) |
| Harrow to Cagliari | 967.32 mi (1,556.74 km) |
| Harrow to Cairo Montenotte | 635.47 mi (1,022.70 km) |
| Harrow to Caivano | 1,010.84 mi (1,626.79 km) |
| Harrow to Calcinaia | 745.77 mi (1,200.20 km) |
| Harrow to Calcinato | 648.17 mi (1,043.13 km) |
| Harrow to Calderara di Reno | 721.27 mi (1,160.78 km) |
| Harrow to Caldogno | 679.60 mi (1,093.71 km) |
| Harrow to Calenzano | 753.72 mi (1,213.00 km) |
| Harrow to Calolziocorte | 597.95 mi (962.31 km) |
