| Gardnerville Ranchos to Oerlinghausen | 5,434.95 mi (8,746.70 km) |
| Gardnerville Ranchos to Oestrich-Winkel | 5,523.11 mi (8,888.59 km) |
| Gardnerville Ranchos to Offenburg | 5,604.00 mi (9,018.77 km) |
| Gardnerville Ranchos to Oftersheim | 5,573.42 mi (8,969.55 km) |
| Gardnerville Ranchos to Ohrdruf | 5,551.64 mi (8,934.50 km) |
| Gardnerville Ranchos to Ohringen | 5,608.06 mi (9,025.30 km) |
| Gardnerville Ranchos to Olbernhau | 5,627.48 mi (9,056.55 km) |
| Gardnerville Ranchos to Olching | 5,713.06 mi (9,194.29 km) |
| Gardnerville Ranchos to Oldenburg | 5,359.57 mi (8,625.40 km) |
| Gardnerville Ranchos to Oldenburg in Holstein | 5,363.98 mi (8,632.50 km) |
| Gardnerville Ranchos to Olfen | 5,414.00 mi (8,712.99 km) |
| Gardnerville Ranchos to Olpe | 5,463.77 mi (8,793.09 km) |
| Gardnerville Ranchos to Olsberg | 5,463.41 mi (8,792.51 km) |
| Gardnerville Ranchos to Oranienburg | 5,507.26 mi (8,863.07 km) |
| Gardnerville Ranchos to Ortenberg | 5,532.80 mi (8,904.18 km) |
