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Terminal Velocity from Weight and Drag Calculator

Speed at which gravitational and drag forces balance.

Computes terminal velocity v_t = √(2mg / (ρ · A · C_d)), the speed at which drag equals weight and acceleration is zero.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

kg
kg/m³
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

v_t = √(2mg / (ρ·A·C_d))

In depth

Computes terminal velocity v_t = √(2mg / (ρ · A · C_d)), the speed at which drag equals weight and acceleration is zero.