polypropylene sheet weight calculator

Enter the dimensions of a polypropylene sheet and this works out its volume and weight. Homopolymer PP, the lightest common commodity plastic.

Length

Width

Thickness

Number of pieces

Total weight

5.43kg

= Exact polypropylene sheet weight Show in

Weight of one sheet: 5.43
Volume of one piece: 6000
Density used: 905 kg/m3

Show the working

Length = 2000
Width = 1000
Thickness = 3
Number of pieces = 1
volume_mm3 = 2000 * 1000 * 3 = 6 000 000
Volume of one piece = 6 000 000 / 1000 = 6000
Density used = 905 = 905
Weight of one sheet = 6 000 000 * 905 / 1e9 = 5.43
Total weight = 5.43 * 1 = 5.43

Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.

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The formula

Volume = length x width x thickness
Weight = volume x density, with density = 905 kg/m3
One cubic millimetre of a material at 1000 kg/m3 weighs exactly one milligram, so the millimetre-to-kilogram step is a shift of the decimal point rather than a rounded factor.

Homopolymer PP, the lightest common commodity plastic.

Dimensions are nominal. Mill tolerances on thickness, and the corner radii on formed sections, both move the real weight by a percent or two.

Every field takes inches or feet as readily as millimetres: change the unit next to it and the conversion is done exactly before the arithmetic starts.

Frequently asked

What is the density of polypropylene?

905 kg/m3, which is 0.905 g/cm3. Homopolymer PP, the lightest common commodity plastic.

How do you calculate the weight of a polypropylene sheet?

Volume = length x width x thickness. Multiply the volume by the density of polypropylene, 905 kg/m3, taking care that both are in the same unit system.

Can I enter dimensions in inches?

Yes. Each dimension field has its own unit selector, and inch, foot, millimetre, centimetre and metre entries are all converted exactly before anything is multiplied.

Where the numbers come from

Densities are nominal room-temperature values for the grade named, drawn from the usual mill and handbook figures.