| Harmanli to Crosby | 1,548.33 mi (2,491.79 km) |
| Harmanli to Crowborough | 1,367.29 mi (2,200.43 km) |
| Harmanli to Croxley Green | 1,404.52 mi (2,260.36 km) |
| Harmanli to Croydon | 1,384.96 mi (2,228.88 km) |
| Harmanli to Cudworth | 1,488.20 mi (2,395.03 km) |
| Harmanli to Culcheth | 1,527.64 mi (2,458.50 km) |
| Harmanli to Cullercoats | 1,528.56 mi (2,459.98 km) |
| Harmanli to Cumbernauld | 1,645.80 mi (2,648.66 km) |
| Harmanli to Cumnock | 1,642.39 mi (2,643.18 km) |
| Harmanli to Cupar | 1,622.01 mi (2,610.37 km) |
| Harmanli to Cwmbran | 1,510.50 mi (2,430.92 km) |
| Harmanli to Dagenham | 1,378.27 mi (2,218.11 km) |
| Harmanli to Dalkeith | 1,611.31 mi (2,593.16 km) |
| Harmanli to Darfield | 1,485.89 mi (2,391.30 km) |
| Harmanli to Darlaston | 1,489.03 mi (2,396.35 km) |
