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West Union, SC 29696
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Cubic Displacement Calculator

Use the form below to calculate the cubic inch displacement of a pump by measuring its internal parts. To find the dimensions below, you must take apart the gear pump to take some internal measurements. Once you've completed the measurements, simply enter them in the appropriate boxes below and click "Calculate" to determine the cubic inch displacement! Make all measurements as accurately as possible in inches.

A video tutorial is available below.


Gear Width (W)


Gear Bore Diameter (D)


Bore to Bore Length (L)


All measurements should be
made in inches.





Displacement

(in³/rev)



(cm³/rev)