basic

Terminal Velocity Calculator

Steady-state fall speed in a fluid.

Compute the terminal velocity of a falling object in a fluid (typically air) when drag balances gravity, using v_t = √(2 m g / (ρ · Cd · A)).

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.
Was this helpful?

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 = √(2 · m · g / (ρ · Cd · A)), g = 9.81 m/s².

In depth

Compute the terminal velocity of a falling object in a fluid (typically air) when drag balances gravity, using v_t = √(2 m g / (ρ · Cd · A)).