EngineeringToolkit

Drag Equation Formula

Calculates aerodynamic drag force from dynamic pressure, reference area, and drag coefficient.

Formula

D = 0.5ρV²SCD

Discipline: Aerospace Engineering. Result unit: N.

Variables and units

  • D — Drag Force (N): Aerodynamic drag force
  • ρ — Air Density (kg/m³): Air density
  • V — Velocity (m/s): Airspeed
  • S — Reference Area (m²): Reference area
  • CD — Drag Coefficient: Coefficient of drag