Glass Weight Calculator
Calculate glass weight for annealed, tempered, and laminated glass.
Weight Results
MaterialAnnealed Glass
Volume72.00 cu in
Weight (lbs)6.71
Weight (kg)3.04
Weight (tons)0.0034
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Frequently Asked Questions
How much does a square foot of 1/4 glass weigh?
Standard 1/4" glass weighs about 3.28 lbs per sq ft. For a 4x8 sheet: 12.8 sq ft x 3.28 = 42 lbs.
Is tempered glass heavier than annealed?
Tempered and annealed glass have the same density (0.09 lb/cu in). Tempered glass is heat-treated for strength but the weight is identical.
What is the weight of laminated glass?
Laminated glass is slightly heavier due to the PVB interlayer — add about 0.5 lbs per sq ft for standard 0.030" PVB film.