Wind Power Density
Calculate wind power density (W/m²) from average wind speed, air density, and Weibull shape factor. Includes NREL wind class and sample turbine output estimates.
Inputs
Results
Avg Power Density
401.2 W/m²
Wind Resource Quality
Good
How to Use This Calculator
- Enter Average Wind Speed (m/s or mph) from anemometer data or NOAA wind resource maps.
- Set Air Density (kg/m³) — standard is 1.225 at sea level; use lower values at altitude or high temperature.
- Enter the Weibull shape factor (k) — typically 2 for most wind regimes.
- Review Avg Power Density (W/m²) and NREL Wind Class (1–7) to assess site wind resource quality.
- Use Annual Energy Density and Sample Turbine Power to estimate potential electricity generation for a small wind project.
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