Drag Force Calculator

Calculate the aerodynamic drag force on an object moving through fluid

Typical values: Sphere~0.47, Cylinder~1.2, Car~0.3-0.5, Airplane~0.02-0.04
Air at sea level: 1.225 kg/m³, Water: 1000 kg/m³

Drag Force Formula

Fd = (1/2) * Cd * rho * v² * A

Where:

  • Cd = drag coefficient (dimensionless)
  • rho = fluid density (kg/m³)
  • v = velocity (m/s)
  • A = reference area (m²)