Silicone Mold Calculator
Calculate the volume of silicone rubber needed to make a mold by subtracting the master object volume from the mold box volume.
Inputs
in
in
in
cu in
Results
Silicone Needed (with 5% overage)
94.24 oz
Silicone (exact)89.75 oz
Silicone (gallons)0.7 gal
Silicone Weight7.22 lbs
Box Volume192 cu in
Silicone Volume162 cu in
Master Displacement15.6%
Wall OkYes
How to Use This Calculator
- Enter the internal dimensions of your mold box (length, width, and height) in inches.
- Enter the approximate volume of the master object you are molding in cubic inches.
- Read the silicone needed in ounces with 5% overage — this accounts for the space not displaced by the master.
- Use the silicone gallons output when ordering by volume from a supplier.
- Compare the estimated cost output against your budget before purchasing silicone.
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