Press Brake Tonnage Calculator Live

FirstBend is the press brake calculator built for the shop floor. Whether you're running air bending on a 60-ton brake or setting up stainless on a 200-tonner, getting the tonnage wrong costs tooling, parts, or worse. FirstBend gives you the right bend tonnage, the correct V-die opening, and accurate flat-pattern numbers before you cut a single blank — so every press brake setup is fast, safe, and right the first time. Built for real shop work: no sign-up, no clutter. Open the app, enter material, thickness, and bend length, and get shop-ready answers in seconds. • Press brake tonnage calculator — required bending force in US tons or metric tonnes, shown per foot and as a job total, so you never overload the press, the punch, or the die. • V-die calculator — choose the right V-die opening for your material thickness with the classic 8x rule for mild steel (adjusted for stainless steel and aluminum), plus inside bend radius estimates. • Bend allowance calculator — flat-pattern dimensions that match your brake and tooling, per bend and total, ready for the shear or laser. • Bend deduction calculator — deduction values for air bending and bottoming so your developed length is right before the first hit. • K-factor calculator — dial in K-factor and neutral-axis position for precise developments across materials, gauges, and bend radii. • Three bending modes — air bending, bottom bending (bottoming), and coining, each with the correct tonnage multiplier applied automatically. • Material database — mild steel, stainless steel, and aluminum with thickness-based tonnage factors and die-opening guidance. • Metric and imperial units — inches, millimeters, US tons, metric tonnes, and kN, switchable in one tap, plus quick tonnage-per-foot reference tables for common gauges. Perfect for press brake operators dialing in the next setup, sheet-metal fabricators verifying tonnage before the first bend, machine shops standardizing setups across shifts, and estimators quoting sheet-metal jobs with numbers they can defend in front of a customer. Apprentices learning the trade build correct setup habits faster, because every result comes with the reasoning behind it — not just a number. Speaks the language of the trade: air bending, bottom bending, coining, V-die opening, tonnage per foot, bend allowance, bend deduction, K-factor, neutral axis, springback, inside bend radius, minimum flange length, and material tonnage for mild steel, stainless steel, and aluminum — from light gauge to plate. Whether you searched for a press brake setup calculator, a v die calculator, a bend tonnage calculator, or a sheet metal bending calculator, FirstBend covers the whole job. Download FirstBend — the press brake setup calculator that keeps your jobs safe, accurate, and on schedule.