basic

Drag Force from Coefficient, Fluid Density, Area, and Velocity Calculator

Aerodynamic/hydrodynamic drag on a moving object.

Calculates drag force F_d = ½ · ρ · v² · C_d · A, where ρ is fluid density, v is velocity, C_d is drag coefficient, and A is reference area.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

kg/m³
m/s
m²

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

F_d = ½ · ρ · v² · C_d · A

In depth

Calculates drag force F_d = ½ · ρ · v² · C_d · A, where ρ is fluid density, v is velocity, C_d is drag coefficient, and A is reference area.