| Frohburg to Oestrich-Winkel | 212.92 mi (342.65 km) |
| Frohburg to Offenburg | 272.96 mi (439.29 km) |
| Frohburg to Oftersheim | 210.62 mi (338.96 km) |
| Frohburg to Ohrdruf | 80.88 mi (130.16 km) |
| Frohburg to Ohringen | 186.40 mi (299.99 km) |
| Frohburg to Olbernhau | 43.31 mi (69.70 km) |
| Frohburg to Olching | 204.96 mi (329.86 km) |
| Frohburg to Oldenburg | 233.93 mi (376.48 km) |
| Frohburg to Oldenburg in Holstein | 234.80 mi (377.87 km) |
| Frohburg to Olfen | 227.57 mi (366.24 km) |
| Frohburg to Olpe | 205.13 mi (330.12 km) |
| Frohburg to Olsberg | 177.41 mi (285.52 km) |
| Frohburg to Oranienburg | 120.89 mi (194.55 km) |
| Frohburg to Ortenberg | 160.58 mi (258.43 km) |
| Frohburg to Oschatz | 29.27 mi (47.11 km) |
