| Harmanli to Buxtehude | 1,092.00 mi (1,757.41 km) |
| Harmanli to Cadolzburg | 889.65 mi (1,431.75 km) |
| Harmanli to Calbe | 955.34 mi (1,537.47 km) |
| Harmanli to Calw | 953.50 mi (1,534.51 km) |
| Harmanli to Castrop-Rauxel | 1,097.33 mi (1,765.98 km) |
| Harmanli to Celle | 1,042.30 mi (1,677.43 km) |
| Harmanli to Cham | 812.82 mi (1,308.11 km) |
| Harmanli to Chemnitz | 870.00 mi (1,400.13 km) |
| Harmanli to Clausthal-Zellerfeld | 999.03 mi (1,607.79 km) |
| Harmanli to Cloppenburg | 1,119.54 mi (1,801.73 km) |
| Harmanli to Coburg | 915.45 mi (1,473.28 km) |
| Harmanli to Coesfeld | 1,116.85 mi (1,797.40 km) |
| Harmanli to Cologne | 1,090.79 mi (1,755.45 km) |
| Harmanli to Coswig | 861.91 mi (1,387.12 km) |
| Harmanli to Coswig | 933.38 mi (1,502.13 km) |
