| Harmanli to Ottendorf-Okrilla | 856.40 mi (1,378.25 km) |
| Harmanli to Ottersberg | 1,093.15 mi (1,759.25 km) |
| Harmanli to Ottobrunn | 812.44 mi (1,307.49 km) |
| Harmanli to Ottweiler | 1,036.31 mi (1,667.79 km) |
| Harmanli to Overath | 1,077.84 mi (1,734.62 km) |
| Harmanli to Oyten | 1,095.82 mi (1,763.56 km) |
| Harmanli to Paderborn | 1,050.92 mi (1,691.29 km) |
| Harmanli to Papenburg | 1,150.30 mi (1,851.23 km) |
| Harmanli to Parchim | 1,024.69 mi (1,649.08 km) |
| Harmanli to Pasewalk | 969.16 mi (1,559.72 km) |
| Harmanli to Passau | 757.63 mi (1,219.28 km) |
| Harmanli to Pattensen | 1,037.54 mi (1,669.76 km) |
| Harmanli to Pegnitz | 874.72 mi (1,407.73 km) |
| Harmanli to Peine | 1,024.19 mi (1,648.27 km) |
| Harmanli to Peissenberg | 829.98 mi (1,335.72 km) |
