| Constanta to Oststeinbek | 1,055.16 mi (1,698.12 km) |
| Constanta to Ottendorf-Okrilla | 839.74 mi (1,351.43 km) |
| Constanta to Ottersberg | 1,077.19 mi (1,733.57 km) |
| Constanta to Ottobrunn | 854.02 mi (1,374.42 km) |
| Constanta to Ottweiler | 1,073.17 mi (1,727.10 km) |
| Constanta to Overath | 1,094.33 mi (1,761.15 km) |
| Constanta to Oyten | 1,080.86 mi (1,739.48 km) |
| Constanta to Paderborn | 1,052.78 mi (1,694.29 km) |
| Constanta to Papenburg | 1,141.72 mi (1,837.42 km) |
| Constanta to Parchim | 992.29 mi (1,596.93 km) |
| Constanta to Pasewalk | 923.36 mi (1,486.01 km) |
| Constanta to Passau | 782.93 mi (1,260.00 km) |
| Constanta to Pattensen | 1,028.53 mi (1,655.25 km) |
| Constanta to Pegnitz | 890.85 mi (1,433.69 km) |
| Constanta to Peine | 1,012.41 mi (1,629.32 km) |
