Shop Vacuum Weight Calculator computes the weight of material in your shop vac.

Use the shop vacuum weight calculator to compute the weight of your shop vacuum when full.  Save your back and don’t over fill your vacuum with heavy dirt or water that is difficult to empty. You can now compute the shop vacuum weight when full of dirt or water.  Use this Calculator to determine the weight!

Rigid WD19560 Shop Vacuum
16 Rigid Shop Vacuum
Sand, Clay, Gravel removed from hole

by Titus Nelson, PE

Inventor of the Holey-Moley Digger

Use the Calculator to determine the Total Weight of the soil inside your vac.  Input (gallons) and Select Soil Type for Density and Soil Type for Swell factor.

In addition, the anticipated soil weight can be helpful when Selecting The Best Hole Digging Shop Vacuum and for determining the size of a shop-vac for digging holes.

Finally, see the blog page on Digging Deep, Straight, Uniform Holes with a Shop-Vac for relevant information.  We love feedback, let us know how you like these calculators.  If you would like to be kept up-dated on blog articles please sign up for more information here.

Shop Vac Weight Calculator

This calculator outputs the hole volume in cubic feet and gallons, soil weight in pounds, based on selected soil densities and input hole dimensions. It also provides removed soil volume based on selected soil swell factors.

Input – Gallons for volume of vac canister.

1. Input number of gallons

Select – Soil or material Density in Drop Down

2. Select material Density Drop Down for the material in Shop Vac

Select – Soil or material Swell Factor in Drop Down

3. Select the Swell Factor Drop Down for material in Shop Vacuum (use same material selected for Density

Output (Weight)

1. Total Weight – Pounds

2. Total Volume – Gallons


This Shop Vacuum Weight Calculator makes it easy to calculate the weight of soil or material in a shop vacuum, which can be helpful when using a Holey-Moley Fence Post Hole Digger.

Because soils are surprisingly heavy, it is helpful to know what weight you are dealing with inside your canister.  This will help prevent damage and prevent back injury from moving a heavy weight

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