Metalworking & Fabrication Calculators
Free, practical calculators for the numbers behind working metal — weight and cost, sheet-metal gauge, bend allowance, cut-list yield, and welding filler. Educational tools, not a substitute for engineered drawings or a qualified welding procedure.
Metal Weight Calculator
Compute the weight of a bar, plate, sheet, round, tube, or hex from its dimensions and metal density — mild steel, stainless, aluminium, copper, or brass — shown in pounds and kilograms
Sheet Metal Gauge & Thickness Converter
Convert a sheet-metal gauge number to a thickness in millimetres and inches, or find the nearest gauge for a thickness, using the correct table for steel, galvanized, stainless, or aluminium
Bend Allowance & Flat Length Calculator
Calculate bend allowance from bend angle, inside radius, material thickness, and K-factor, then add up leg lengths to get the flat blank length to cut before bending
Metal Cost Estimator
Multiply a part's weight by a price per pound or kilogram to get the material cost, scaled across a run of identical pieces — a quick quote for stock cost
Material Yield & Cut List Calculator
Divide a stock length by the piece length plus saw kerf to find how many pieces you get per bar and the drop left over — the yield behind an efficient cut list
Welding Filler & Rod Consumption Calculator
Estimate deposited filler weight and electrode count from a weld's cross-sectional area, length, and passes — an engineering ballpark for planning consumables