| Johnston to Clacton-on-Sea | 4,220.97 mi (6,793.00 km) |
| Johnston to Clay Cross | 4,080.03 mi (6,566.17 km) |
| Johnston to Clayton | 4,044.78 mi (6,509.44 km) |
| Johnston to Clayton le Moors | 4,024.59 mi (6,476.96 km) |
| Johnston to Cleckheaton | 4,050.06 mi (6,517.95 km) |
| Johnston to Cleethorpes | 4,116.37 mi (6,624.65 km) |
| Johnston to Clevedon | 4,085.86 mi (6,575.55 km) |
| Johnston to Clifton | 4,097.43 mi (6,594.17 km) |
| Johnston to Clifton | 4,063.84 mi (6,540.12 km) |
| Johnston to Cliftonville | 4,245.17 mi (6,831.94 km) |
| Johnston to Clitheroe | 4,021.15 mi (6,471.41 km) |
| Johnston to Clydebank | 3,885.88 mi (6,253.72 km) |
| Johnston to Coalville | 4,096.65 mi (6,592.92 km) |
| Johnston to Coatbridge | 3,900.02 mi (6,276.47 km) |
| Johnston to Cobham | 4,180.67 mi (6,728.14 km) |
