| Pforzheim to Oerlinghausen | 212.24 mi (341.57 km) |
| Pforzheim to Oestrich-Winkel | 82.65 mi (133.02 km) |
| Pforzheim to Offenburg | 45.99 mi (74.01 km) |
| Pforzheim to Oftersheim | 33.31 mi (53.60 km) |
| Pforzheim to Ohrdruf | 161.22 mi (259.46 km) |
| Pforzheim to Ohringen | 41.72 mi (67.14 km) |
| Pforzheim to Olbernhau | 239.98 mi (386.21 km) |
| Pforzheim to Olching | 128.74 mi (207.19 km) |
| Pforzheim to Oldenburg | 294.34 mi (473.70 km) |
| Pforzheim to Oldenburg in Holstein | 384.92 mi (619.48 km) |
| Pforzheim to Olfen | 203.49 mi (327.48 km) |
| Pforzheim to Olpe | 151.63 mi (244.02 km) |
| Pforzheim to Olsberg | 169.91 mi (273.44 km) |
| Pforzheim to Oranienburg | 331.87 mi (534.09 km) |
| Pforzheim to Ortenberg | 102.14 mi (164.38 km) |
