| Frankenthal to Oestrich-Winkel | 35.83 mi (57.66 km) |
| Frankenthal to Offenburg | 76.08 mi (122.43 km) |
| Frankenthal to Oftersheim | 15.41 mi (24.80 km) |
| Frankenthal to Ohrdruf | 138.26 mi (222.50 km) |
| Frankenthal to Ohringen | 56.64 mi (91.15 km) |
| Frankenthal to Olbernhau | 234.28 mi (377.03 km) |
| Frankenthal to Olching | 163.28 mi (262.78 km) |
| Frankenthal to Oldenburg | 249.54 mi (401.59 km) |
| Frankenthal to Oldenburg in Holstein | 346.53 mi (557.69 km) |
| Frankenthal to Olfen | 156.69 mi (252.17 km) |
| Frankenthal to Olpe | 105.00 mi (168.98 km) |
| Frankenthal to Olsberg | 125.66 mi (202.23 km) |
| Frankenthal to Oranienburg | 307.12 mi (494.26 km) |
| Frankenthal to Ortenberg | 64.91 mi (104.46 km) |
| Frankenthal to Oschatz | 242.36 mi (390.04 km) |
