| Harmanli to Castle Rock (Colorado) | 6,026.09 mi (9,698.05 km) |
| Harmanli to Castro Valley (California) | 6,575.82 mi (10,582.75 km) |
| Harmanli to Catalina Foothills (Arizona) | 6,619.33 mi (10,652.78 km) |
| Harmanli to Cataño (Puerto Rico) | 5,477.03 mi (8,814.42 km) |
| Harmanli to Cathedral City (California) | 6,683.58 mi (10,756.19 km) |
| Harmanli to Catonsville (Maryland) | 5,025.11 mi (8,087.13 km) |
| Harmanli to Cave Spring (Virginia) | 5,251.12 mi (8,450.86 km) |
| Harmanli to Cayce (South Carolina) | 5,448.23 mi (8,768.09 km) |
| Harmanli to Cayey (Puerto Rico) | 5,492.55 mi (8,839.40 km) |
| Harmanli to Cedar City (Utah) | 6,360.11 mi (10,235.61 km) |
| Harmanli to Cedar Falls (Iowa) | 5,456.62 mi (8,781.58 km) |
| Harmanli to Cedar Hill (Texas) | 6,140.25 mi (9,881.77 km) |
| Harmanli to Cedar Lake (Indiana) | 5,338.30 mi (8,591.16 km) |
| Harmanli to Cedar Mill (Oregon) | 6,092.99 mi (9,805.71 km) |
| Harmanli to Cedar Park (Texas) | 6,283.79 mi (10,112.78 km) |
