Accurate tools for steel, fabrication, piping, and construction professionals. Built on ASTM, ISO, and ASME standards — free, fast, and precise.
Professional tools organized by discipline. Every calculator uses verified engineering formulas.
Calculate steel section weights, moment of inertia, section modulus, and structural capacities for beams, columns, and plates.
Torque specifications, preload calculations, shear capacity, and bolt pattern analysis for metric and imperial fasteners.
Pipe weight, schedule lookup, pressure ratings, flow velocity, and pipe stress calculations per ASME B36.10M and API 5L.
Concrete volume, rebar quantity, paint and coating area, welding consumables, and material quantity estimates for construction projects.
Our most popular tools, used daily by structural engineers, fabricators, and site engineers worldwide.
Calculate the weight of any steel section — round bar, square bar, flat bar, pipe, or plate — with live results and unit toggle (mm / inch).
Open Calculator →Determine the required tightening torque for metric bolts from M6 to M36. Includes Grade 8.8 and 10.9, with standard reference tables.
Open Calculator →Calculate pipe weight per metre and total weight for any OD and wall thickness. Includes ASME B36.10M schedule lookup for standard pipes.
Open Calculator →From dimensions to full project cost in seconds — material cost, scrap loss, labor, and per-piece cost. Multi-currency. PDF report included.
Open Cost Estimator →Every formula on SmartUtilz is sourced from and validated against internationally recognized engineering standards.
All calculations use standard engineering formulas from ASTM, ISO, ASME, and API publications — not approximations.
Live calculation as you type — no buttons, no waiting. Results update in real time as you enter dimensions.
Use on the job site from your phone or tablet. SmartUtilz is fully responsive and works on all devices.
Use all tools immediately — no account, no registration, no email. Your data stays in your browser.
Referenced Standards & Specifications: