| Forres to Oerlinghausen | 624.15 mi (1,004.48 km) |
| Forres to Oestrich-Winkel | 706.00 mi (1,136.20 km) |
| Forres to Offenburg | 791.03 mi (1,273.04 km) |
| Forres to Oftersheim | 756.46 mi (1,217.40 km) |
| Forres to Ohrdruf | 742.86 mi (1,195.52 km) |
| Forres to Ohringen | 790.79 mi (1,272.66 km) |
| Forres to Olbernhau | 833.54 mi (1,341.46 km) |
| Forres to Olching | 896.20 mi (1,442.29 km) |
| Forres to Oldenburg | 556.46 mi (895.54 km) |
| Forres to Oldenburg in Holstein | 604.29 mi (972.52 km) |
| Forres to Olfen | 597.88 mi (962.20 km) |
| Forres to Olpe | 646.88 mi (1,041.05 km) |
| Forres to Olsberg | 648.71 mi (1,044.00 km) |
| Forres to Oranienburg | 742.07 mi (1,194.24 km) |
| Forres to Ortenberg | 716.40 mi (1,152.93 km) |
