| Riihimaki to Oak Harbor (Washington) | 4,686.84 mi (7,542.75 km) |
| Riihimaki to Oak Hills (Oregon) | 4,872.34 mi (7,841.28 km) |
| Riihimaki to Oak Lawn (Illinois) | 4,411.69 mi (7,099.92 km) |
| Riihimaki to Oak Park (California) | 5,562.54 mi (8,952.04 km) |
| Riihimaki to Oak Park (Illinois) | 4,402.30 mi (7,084.82 km) |
| Riihimaki to Oak Park (Michigan) | 4,246.26 mi (6,833.69 km) |
| Riihimaki to Oak Ridge (Florida) | 5,028.33 mi (8,092.31 km) |
| Riihimaki to Oak Ridge (New Jersey) | 4,084.43 mi (6,573.26 km) |
| Riihimaki to Oak Ridge (Tennessee) | 4,662.04 mi (7,502.83 km) |
| Riihimaki to Oakdale (California) | 5,359.49 mi (8,625.27 km) |
| Riihimaki to Oakdale (Minnesota) | 4,344.73 mi (6,992.16 km) |
| Riihimaki to Oakland (California) | 5,378.36 mi (8,655.64 km) |
| Riihimaki to Oakland (New Jersey) | 4,076.97 mi (6,561.25 km) |
| Riihimaki to Oakland Park (Florida) | 5,128.32 mi (8,253.23 km) |
| Riihimaki to Oakleaf Plantation (Florida) | 4,938.72 mi (7,948.11 km) |
