Estimating Reference
Metal Weight Calculator
Plate, bar, tube, or hex in nine materials. Weight per piece and per batch in kg and lb, and material cost if you enter your price per kilogram.
Weight is where every material price starts
Metal is bought by weight, so every quote starts the same way: section area × length × density. Carbon steel runs 7.85 g/cm³, stainless about 8.0, aluminum 2.7, titanium 4.51. A useful shortcut worth memorizing: steel plate weighs 7.85 kg per square meter per millimeter of thickness, so a 3 mm sheet is about 23.6 kg/m².
The densities here are standard nominal values; specific alloys drift by a percent or two (6061 aluminum is 2.70, 7075 is 2.81). For weight-critical work, confirm against the grade's datasheet, and remember quoted material usually includes a scrap or drop allowance on top of the net weight this calculator gives you.
For an estimator, the tedious part is not this arithmetic, it is doing it thirty times per RFQ after reading each size off a different drawing. Reading the drawing, extracting the sizes and materials, and pricing the metal against your own rates is exactly the front half of quoting that AI estimating now automates.
You priced the metal. The other forty pages of the RFQ are still waiting.
Mavlon reads the whole RFQ package, drawings, specs, emails, structures every requirement, and drafts the quote from your own pricing logic.
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