Glass Weight Calculator

Multiply the panel's area by its thickness to get volume, then multiply by the density of glass. For float glass, density is 2,500 kg/m³ (156 lb/ft³). So a 1 m by 1 m panel of 6 mm glass equals 1 × 1 × 0.006 × 2500 = 15 kg.

Standard float glass (annealed or tempered) has a nominal density of 2,500 kg/m³, equivalent to 156 lb/ft³ or about 2.5 g/cm³. Low-iron glass is fractionally higher at ~2,510 kg/m³. Laminated glass is slightly lower (~2,480 kg/m³) because the PVB interlayer is lighter than glass. Wired glass is higher (~2,570 kg/m³) because of the embedded steel mesh.

No. Tempered glass and annealed (regular) glass have the same density, so a panel of the same dimensions weighs the same in both. Tempering reshapes internal stress to make the glass stronger and shatter into small pieces, but it does not change the mass.

About 15 kg (33 lb) for a square metre of 6 mm annealed or tempered glass. The formula is thickness (mm) × 2.5 = weight per square metre in kilograms. So 10 mm is 25 kg/m², 12 mm is 30 kg/m².

About 3.27 lb/ft² for 1/4 inch (6.4 mm) annealed or tempered glass. For other thicknesses: 1/8 inch is about 1.64 lb/ft², 1/2 inch is about 6.54 lb/ft², and 3/4 inch is about 9.81 lb/ft².

Yes. Pick 'Laminated' from the glass type dropdown and enter the total laminate thickness (both glass layers plus the interlayer). The calculator uses an effective density of 2,480 kg/m³ that accounts for the lighter PVB interlayer. If you are using SGP interlayer or unusually thick interlayers, the result will be within a few percent of the actual weight.

Use the calculator once per pane, then add the results. An IGU has two or three glass layers separated by spacers filled with air or argon. The spacers and gas are negligible in weight compared to the glass, so the IGU weight is essentially the sum of the individual panes.

Yes. Shower doors are usually 3/8 inch (10 mm) tempered glass. Glass railings and balustrades use 3/8 to 3/4 inch (10 to 19 mm) tempered or laminated. Enter your panel's exact dimensions and thickness to get the weight your hardware and your installation team will need to handle.