PHYSICS / FLUID DYNAMICS

Terminal Velocity Calculator

Estimate terminal speed when weight balances quadratic drag. Inspect the SI equation, substituted inputs, derived result, and physical limitations in one guided workspace.

01 Calculated in this tab
02 Values stay in this browser tab
03 Use boundary

Use boundary

Calculation path

Estimate terminal speed when weight balances quadratic drag. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.

Calculation path

v_t=sqrt(2mg/(rho C_d A))

What you provide

Object mass expressed in kg, using the same scenario as the other inputs
Gravitational acceleration expressed in m/s^2, using the same scenario as the other inputs
Fluid density expressed in kg/m^3, using the same scenario as the other inputs
Drag coefficient, using the same scenario as the other inputs
Reference area expressed in m^2, using the same scenario as the other inputs

What you receive

Terminal speed in m/s from the stated equation
A symbolic formula plus substituted working with your values
Visible assumptions, field guidance, and an authoritative learning reference

Use boundary

Choose the maximum decimal places shown. This does not increase source accuracy.

Buoyancy is neglected and the drag coefficient remains constant at the resulting speed.

Use internally consistent units and retain extra precision when carrying the result into another calculation.

Reviewed reference factors

OpenStax University Physics Volume 1

Terminal Velocity Calculator

Calculation path

What you provide

What you receive

Choose the maximum decimal places shown. This does not increase source accuracy.

Reviewed reference factors

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