| Diamond Bar to Clacton-on-Sea | 5,457.26 mi (8,782.61 km) |
| Diamond Bar to Clay Cross | 5,313.83 mi (8,551.78 km) |
| Diamond Bar to Clayton | 5,273.70 mi (8,487.19 km) |
| Diamond Bar to Clayton le Moors | 5,256.09 mi (8,458.86 km) |
| Diamond Bar to Cleckheaton | 5,279.18 mi (8,496.03 km) |
| Diamond Bar to Cleethorpes | 5,339.68 mi (8,593.39 km) |
| Diamond Bar to Clevedon | 5,343.75 mi (8,599.94 km) |
| Diamond Bar to Clifton | 5,332.92 mi (8,582.51 km) |
| Diamond Bar to Clifton | 5,287.50 mi (8,509.40 km) |
| Diamond Bar to Cliftonville | 5,484.29 mi (8,826.12 km) |
| Diamond Bar to Clitheroe | 5,251.63 mi (8,451.68 km) |
| Diamond Bar to Clydebank | 5,101.83 mi (8,210.60 km) |
| Diamond Bar to Coalville | 5,334.90 mi (8,585.69 km) |
| Diamond Bar to Coatbridge | 5,114.86 mi (8,231.58 km) |
| Diamond Bar to Cobham | 5,428.84 mi (8,736.87 km) |
