| Harmanli to Costessey | 1,363.19 mi (2,193.84 km) |
| Harmanli to Cottingham | 1,455.74 mi (2,342.79 km) |
| Harmanli to Coulsdon | 1,385.05 mi (2,229.03 km) |
| Harmanli to Coventry | 1,464.11 mi (2,356.26 km) |
| Harmanli to Cowdenbeath | 1,627.71 mi (2,619.55 km) |
| Harmanli to Cowes | 1,422.66 mi (2,289.55 km) |
| Harmanli to Cowley | 1,403.46 mi (2,258.65 km) |
| Harmanli to Cowley | 1,437.75 mi (2,313.83 km) |
| Harmanli to Cramlington | 1,535.44 mi (2,471.05 km) |
| Harmanli to Cranleigh | 1,395.31 mi (2,245.54 km) |
| Harmanli to Crawley | 1,382.69 mi (2,225.22 km) |
| Harmanli to Crayford | 1,374.69 mi (2,212.34 km) |
| Harmanli to Crewe | 1,516.33 mi (2,440.30 km) |
| Harmanli to Crigglestone | 1,493.97 mi (2,404.32 km) |
| Harmanli to Cromer | 1,367.34 mi (2,200.53 km) |
