| Markham to Cromer | 3,971.08 mi (6,390.83 km) |
| Markham to Crosby | 3,792.99 mi (6,104.23 km) |
| Markham to Crowborough | 3,988.18 mi (6,418.35 km) |
| Markham to Croxley Green | 3,946.27 mi (6,350.92 km) |
| Markham to Croydon | 3,967.79 mi (6,385.53 km) |
| Markham to Cudworth | 3,850.62 mi (6,196.98 km) |
| Markham to Culcheth | 3,813.17 mi (6,136.71 km) |
| Markham to Cullercoats | 3,807.50 mi (6,127.58 km) |
| Markham to Cumbernauld | 3,690.49 mi (5,939.26 km) |
| Markham to Cumnock | 3,693.67 mi (5,944.39 km) |
| Markham to Cupar | 3,715.62 mi (5,979.71 km) |
| Markham to Cwmbran | 3,847.19 mi (6,191.46 km) |
| Markham to Dagenham | 3,972.06 mi (6,392.42 km) |
| Markham to Dalkeith | 3,725.25 mi (5,995.20 km) |
| Markham to Darfield | 3,853.07 mi (6,200.92 km) |
