| Hagerstown to Oak Harbor (Washington) | 2,276.84 mi (3,664.22 km) |
| Hagerstown to Oak Hills (Oregon) | 2,299.92 mi (3,701.36 km) |
| Hagerstown to Oak Lawn (Illinois) | 544.45 mi (876.20 km) |
| Hagerstown to Oak Park (California) | 2,278.51 mi (3,666.91 km) |
| Hagerstown to Oak Park (Illinois) | 548.91 mi (883.38 km) |
| Hagerstown to Oak Park (Michigan) | 344.92 mi (555.09 km) |
| Hagerstown to Oak Ridge (Florida) | 799.85 mi (1,287.23 km) |
| Hagerstown to Oak Ridge (New Jersey) | 195.16 mi (314.08 km) |
| Hagerstown to Oak Ridge (Tennessee) | 439.40 mi (707.14 km) |
| Hagerstown to Oakdale (California) | 2,306.57 mi (3,712.07 km) |
| Hagerstown to Oakdale (Minnesota) | 860.14 mi (1,384.26 km) |
| Hagerstown to Oakland (California) | 2,377.50 mi (3,826.22 km) |
| Hagerstown to Oakland (New Jersey) | 206.98 mi (333.10 km) |
| Hagerstown to Oakland Park (Florida) | 940.66 mi (1,513.85 km) |
| Hagerstown to Oakleaf Plantation (Florida) | 694.42 mi (1,117.55 km) |
