SpecCalcsReference calculators for the shop floor

Sheet / Plate Weight

A steel 1000×2000×6 mm sheet / plate weighs about 94.2 kg. Change the size, material or length below for an exact figure.

Sheet / Plate weight calculator m = w·l·t·ρ
Weight
Mass
m=wltρm = w \cdot l \cdot t \cdot \rho

Common sheet / plate sizes — steel weight

Size (mm)Weight (kg)lb
1000×2000×1 mm15.734.6 lb
1000×2000×1.5 mm23.551.9 lb
1000×2000×2 mm31.469.2 lb
1000×2000×3 mm47.1104 lb
1000×2000×4 mm62.8138 lb
1000×2000×5 mm78.5173 lb
1000×2000×6 mm94.2208 lb
1000×2000×8 mm126277 lb
1000×2000×10 mm157346 lb
1000×2000×12 mm188415 lb
1000×2000×15 mm235519 lb
1000×2000×20 mm314692 lb
1000×2000×25 mm392865 lb

Carbon steel, ρ = 7.85 g/cm³. Other materials scale linearly with density — use the selector above.

How sheet plate weight is calculated

Weight comes straight from geometry and density: work out the volume of the profile, then multiply by thickness and the material's density. For sheet plate the mass is simply width × length × thickness × density. Carbon steel is 7.85 g/cm³; that single number is why a steel part weighs almost three times an identical aluminium one (2.70 g/cm³).

The quick-reference table above is calculated for carbon steel. For any other material, use the calculator's material selector — the weight scales linearly with density, so stainless (8.0) comes out about 2% heavier than steel, and aluminium about 66% lighter, for the same dimensions.

Per-metre vs. total weight

Sheet and plate are priced and handled by the piece, so the calculator gives total weight for the sheet size you enter.

Why calculated beats a printed chart

Stock charts only list round-number sizes in one material. Real jobs use odd cut lengths, mixed materials and non-standard sections. Computing the weight from dimensions means you get the exact figure for your piece — not the nearest row on a wall chart.

References

  1. Densities: standard handbook values (ASM Metals Reference Book; matweb typical values). Mill stock varies a few percent with alloy and tolerance.
  2. Cross-section relations: standard mensuration formulas per profile geometry.

Last reviewed: 2026-07 · Calculation method & assumptions