| Markham to Cosham | 3,947.84 mi (6,353.44 km) |
| Markham to Costessey | 3,976.56 mi (6,399.66 km) |
| Markham to Cottingham | 3,881.44 mi (6,246.57 km) |
| Markham to Coulsdon | 3,968.34 mi (6,386.42 km) |
| Markham to Coventry | 3,882.20 mi (6,247.80 km) |
| Markham to Cowdenbeath | 3,709.13 mi (5,969.28 km) |
| Markham to Cowes | 3,941.37 mi (6,343.02 km) |
| Markham to Cowley | 3,948.66 mi (6,354.76 km) |
| Markham to Cowley | 3,914.18 mi (6,299.27 km) |
| Markham to Cramlington | 3,800.63 mi (6,116.52 km) |
| Markham to Cranleigh | 3,961.20 mi (6,374.93 km) |
| Markham to Crawley | 3,973.26 mi (6,394.34 km) |
| Markham to Crayford | 3,976.45 mi (6,399.48 km) |
| Markham to Crewe | 3,826.52 mi (6,158.19 km) |
| Markham to Crigglestone | 3,844.69 mi (6,187.43 km) |
