| Forbach to Oestrich-Winkel | 74.56 mi (119.99 km) |
| Forbach to Offenburg | 68.60 mi (110.41 km) |
| Forbach to Oftersheim | 76.95 mi (123.84 km) |
| Forbach to Ohrdruf | 204.35 mi (328.87 km) |
| Forbach to Ohringen | 117.39 mi (188.92 km) |
| Forbach to Olbernhau | 303.67 mi (488.71 km) |
| Forbach to Olching | 212.69 mi (342.29 km) |
| Forbach to Oldenburg | 279.04 mi (449.08 km) |
| Forbach to Oldenburg in Holstein | 391.89 mi (630.68 km) |
| Forbach to Olfen | 175.87 mi (283.03 km) |
| Forbach to Olpe | 132.81 mi (213.74 km) |
| Forbach to Olsberg | 164.80 mi (265.22 km) |
| Forbach to Oranienburg | 369.43 mi (594.55 km) |
| Forbach to Ortenberg | 125.44 mi (201.88 km) |
| Forbach to Oschatz | 310.47 mi (499.66 km) |
