| Cities | Distance |
|---|---|
| Watford to Cosham | 63.19 mi (101.69 km) |
| Watford to Costessey | 97.42 mi (156.78 km) |
| Watford to Cottingham | 146.98 mi (236.54 km) |
| Watford to Coulsdon | 25.58 mi (41.17 km) |
| Watford to Coventry | 70.38 mi (113.27 km) |
| Watford to Cowdenbeath | 330.41 mi (531.75 km) |
| Watford to Cowes | 73.22 mi (117.84 km) |
| Watford to Cowley | 9.51 mi (15.30 km) |
| Watford to Cowley | 35.50 mi (57.13 km) |
| Watford to Cramlington | 241.80 mi (389.13 km) |
| Watford to Cranleigh | 36.02 mi (57.96 km) |
| Watford to Crawley | 38.77 mi (62.39 km) |
| Watford to Crayford | 28.58 mi (45.99 km) |
| Watford to Crewe | 131.86 mi (212.20 km) |
| Watford to Crigglestone | 145.31 mi (233.86 km) |