| Romeoville to Cromer | 3,984.64 mi (6,412.65 km) |
| Romeoville to Crosby | 3,806.77 mi (6,126.41 km) |
| Romeoville to Crowborough | 4,002.39 mi (6,441.23 km) |
| Romeoville to Croxley Green | 3,960.38 mi (6,373.61 km) |
| Romeoville to Croydon | 3,981.94 mi (6,408.31 km) |
| Romeoville to Cudworth | 3,864.23 mi (6,218.88 km) |
| Romeoville to Culcheth | 3,826.92 mi (6,158.83 km) |
| Romeoville to Cullercoats | 3,820.65 mi (6,148.75 km) |
| Romeoville to Cumbernauld | 3,703.55 mi (5,960.28 km) |
| Romeoville to Cumnock | 3,706.92 mi (5,965.71 km) |
| Romeoville to Cupar | 3,728.48 mi (6,000.40 km) |
| Romeoville to Cwmbran | 3,861.53 mi (6,214.54 km) |
| Romeoville to Dagenham | 3,986.14 mi (6,415.08 km) |
| Romeoville to Dalkeith | 3,738.25 mi (6,016.13 km) |
| Romeoville to Darfield | 3,866.69 mi (6,222.84 km) |
