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Both calculators run independently — change the inputs on either side to compare results.

Wind Energy

Wind Energy Density Calculator

Compute the wind power flux (watts per square meter) available at a site for a given wind speed and air density. This is the gross resource: the energy passing through every square meter of rotor area before any turbine extracts it.

Fill in the required fields to see your result.
Wind Energy

Wind Farm Capacity Factor Calculator

Calculate the capacity factor of a wind turbine or wind farm, the fraction of its theoretical maximum output that was actually delivered over a period. It is the single most important metric for comparing real-world wind project performance.

Fill in the required fields to see your result.

Key differences

Wind Energy Density CalculatorWind Farm Capacity Factor Calculator
CategoryWind EnergyWind Energy
Inputs required22
ResultWind Energy Density (W/m²)Capacity Factor (%)
What it doesCompute the wind power flux (watts per square meter) available at a site for a given wind speed and air density. This is the gross resource: the energy passing through every square meter of rotor area before any turbine extracts it.Calculate the capacity factor of a wind turbine or wind farm, the fraction of its theoretical maximum output that was actually delivered over a period. It is the single most important metric for comparing real-world wind project performance.