| Wooster to Oerlinghausen | 4,099.91 mi (6,598.16 km) |
| Wooster to Oestrich-Winkel | 4,139.71 mi (6,662.22 km) |
| Wooster to Offenburg | 4,189.04 mi (6,741.60 km) |
| Wooster to Oftersheim | 4,183.80 mi (6,733.17 km) |
| Wooster to Ohrdruf | 4,216.07 mi (6,785.11 km) |
| Wooster to Ohringen | 4,225.43 mi (6,800.17 km) |
| Wooster to Olbernhau | 4,319.24 mi (6,951.14 km) |
| Wooster to Olching | 4,332.02 mi (6,971.71 km) |
| Wooster to Oldenburg | 4,045.00 mi (6,509.79 km) |
| Wooster to Oldenburg in Holstein | 4,103.81 mi (6,604.45 km) |
| Wooster to Olfen | 4,059.68 mi (6,533.43 km) |
| Wooster to Olpe | 4,099.56 mi (6,597.61 km) |
| Wooster to Olsberg | 4,113.32 mi (6,619.75 km) |
| Wooster to Oranienburg | 4,240.68 mi (6,824.72 km) |
| Wooster to Ortenberg | 4,168.46 mi (6,708.50 km) |
