| Pforzheim to Oberkirch | 37.79 mi (60.81 km) |
| Pforzheim to Obernburg am Main | 68.18 mi (109.73 km) |
| Pforzheim to Obernkirchen | 233.64 mi (376.01 km) |
| Pforzheim to Oberschleissheim | 138.20 mi (222.41 km) |
| Pforzheim to Oberstdorf | 125.68 mi (202.26 km) |
| Pforzheim to Obertraubling | 157.21 mi (253.00 km) |
| Pforzheim to Obertshausen | 81.16 mi (130.62 km) |
| Pforzheim to Oberursel | 90.58 mi (145.77 km) |
| Pforzheim to Ochsenfurt | 80.56 mi (129.64 km) |
| Pforzheim to Ochsenhausen | 80.45 mi (129.48 km) |
| Pforzheim to Ochtrup | 238.20 mi (383.34 km) |
| Pforzheim to Odenthal | 163.73 mi (263.50 km) |
| Pforzheim to Oelde | 204.48 mi (329.08 km) |
| Pforzheim to Oelsnitz | 187.13 mi (301.16 km) |
| Pforzheim to Oer-Erkenschwick | 200.37 mi (322.47 km) |
