Calculator

Drag Force

With this formula you can calculate the drag force, the density of the fluid, die speed of the object (relative to the fluid), the drag coefficient and the cross-sectional area.

F =12 ρ × A × cD × v 2
() [N] =12 () [kg m⁻³] × () [m²] × () × () [m s⁻¹] 2

To fill in a variable, click on a bracket "()", a variable or a unit.
Input a number or a calculation, choose a unit and click on the button "Insert input".
The variable that you want to calculate, should be empty or filled in with an "x"/"X".
If everything is filled in correctly, a button ("Calculate") shoud appear, that has to be pressed.

If the calculation duration is too long (over 10 seconds) or an error occurs, check if every variable is filled in correctly.

Variables

F Force
ρ Density
A Area
cD drag coefficient
v Velocity
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