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mild steel sheet weight calculator

Enter the dimensions of a mild steel sheet and this works out its volume and weight. Plain carbon structural steel such as A36, S275 or 1018. Alloying moves the density by well under 1%.

Total weight
47.1kg
= Exact mild steel sheet weight
Weight of one sheet
47.1
Volume of one piece
6000
Density used
7850 kg/m3
Show the working
  1. Length = 2000
  2. Width = 1000
  3. Thickness = 3
  4. Number of pieces = 1
  5. volume_mm3 = 2000 * 1000 * 3 = 6 000 000
  6. Volume of one piece = 6 000 000 / 1000 = 6000
  7. Density used = 7850 = 7850
  8. Weight of one sheet = 6 000 000 * 7850 / 1e9 = 47.1
  9. Total weight = 47.1 * 1 = 47.1

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 = 7850 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.

    Plain carbon structural steel such as A36, S275 or 1018. Alloying moves the density by well under 1%.

    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 mild steel?

    7850 kg/m3, which is 7.850 g/cm3. Plain carbon structural steel such as A36, S275 or 1018. Alloying moves the density by well under 1%.

    How do you calculate the weight of a mild steel sheet?

    Volume = length x width x thickness. Multiply the volume by the density of mild steel, 7850 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.

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