Metal Weight & Cost
Weight of stock from shape and size, and what the cut-off will cost.
Method & sources
Densities used by this calculator (lb/in³ · g/cm³): 1018 / A36 mild steel 0.284 · 7.87, 4140 / 4142 alloy steel 0.284 · 7.85, 304 / 304L stainless 0.289 · 8.00, 316 / 316L stainless 0.289 · 8.00, 17-4 PH stainless 0.282 · 7.80, 6061 aluminum 0.0975 · 2.70, 7075 aluminum 0.102 · 2.81, 360 brass 0.307 · 8.50, 110 copper 0.323 · 8.94, 932 bearing bronze 0.322 · 8.91, gray cast iron 0.260 · 7.20, titanium grade 5 (6Al-4V) 0.160 · 4.43.
Densities are nominal published values as producers and standard references round them — each unit system uses its own published figure, so the numbers match what mill datasheets print. Sources: producer datasheets and public engineering references; copper alloys from the Copper Development Association. Actual density varies slightly with temper, composition and product form; a mill cert governs for exact work. Full licensing details are on the Sources page.
How weight is figured: volume from the stock geometry (hex bar measured across flats: area = (√3⁄2)·AF²; tube: π⁄4·(OD²−ID²)), times density. In inch mode the math runs in lb/in³; in metric mode it runs in g/cm³. Cost is weight × price for per-pound or per-kilogram pricing, or simply price × quantity for per-piece stock. Saw kerf and cut allowance are not included — order stock accordingly.