EngineeringToolkit

Drag Force Formula

The resistance force caused by the motion of a body through a fluid, such as air.

Formula

D = CD · 0.5 · ρ · v² · A

Discipline: Aerospace Engineering. Result unit: N.

Variables and units

  • D — Drag Force (N): Drag force
  • CD — Drag Coefficient: Dimensionless drag coefficient
  • ρ — Air Density (kg/m³): Air density
  • v — Velocity (m/s): Aircraft velocity
  • A — Frontal Area (m²): Reference area