About MetaCalc.in
MetaCalc.in is a free online metal weight calculator built for the Indian steel and construction industry. It calculates the weight of pipes, plates, round bars, flat bars, TMT rebars, angles, channels, I-beams, hollow sections and bolts in 14 engineering materials.
Why We Built MetaCalc.in
In the Indian steel market, weight estimation is a daily task for fabricators, contractors and steel traders. Many people still rely on manual D²/162 calculations, old paper charts, or generic apps that don't use Indian sizes. We wanted a fast, mobile-friendly tool that uses the section sizes and classes actually sold in India.
Weights are calculated from nominal dimensions and standard material densities (for example 7,850 kg/m³ for mild steel). Where an Indian Standard publishes unit weights — IS 808 for structural sections, IS 1239 for MS/GI pipes, IS 1786 for TMT bars — we use those tables, and we cross-check them against published manufacturer charts. Every calculator shows its formula so you can verify the result yourself.
Our Mission
To make metal weight calculation instant, transparent and accessible to everyone — from a site supervisor checking TMT bar quantities on a phone to a purchase manager verifying a supplier's invoice. Essential engineering tools should be free and usable without registration or login.
What We Offer
Pipe & Tube Calculator
Round MS/GI/SS pipes plus rectangular and square tubes, with an IS 1239 Light/Medium/Heavy reference table.
Plate & Sheet Calculator
Rectangular and circular plates in any material, with per-m² charts and chequered plate guidance.
Round Bar & TMT Calculator
Solid round bars using D²/162, and a dedicated TMT calculator with IS 1786 nominal weights and bars-per-tonne chart.
Flat & Square Bar
MS patti and square bar weight from width/side, thickness and length, in 14 materials.
Angle, Channel & Beam
IS 808 unit weights for equal and unequal angles, ISMC channels (plus SAIL/JSPL MC series) and ISMB beams.
Hollow Sections
RHS, SHS and CHS weight, with an option for real rounded corners or the textbook sharp-corner formula.
Bolt & Nut Calculator
Hex bolts M6–M36 for any length, with nut and washer, calculated from ISO 4017 / 4032 / 7089 dimensions.
Pipe Chart & IS 808 Table
IS 1239 and ASME SCH 10/40/80/160 pipe weights, and a searchable IS 808 table of 100+ sections with I, Z and r.
Save, Share & PDF
Save calculations on your device, compare them side by side, share on WhatsApp or download a PDF report.
Metal Density Chart
Reference densities for 14 metals in kg/m³ and g/cm³, with comparison to mild steel.
Who Uses MetaCalc.in?
Fabricators & Manufacturers
Quick bill of materials (BOM) estimation, job costing and material planning before ordering from the steel market.
Civil Contractors & Site Engineers
Estimating TMT bar quantities, checking steel delivery weights and preparing material reconciliation.
Steel Traders & Dealers
Comparing theoretical weight with weighbridge weight, preparing quotations and planning transport loads.
Procurement & Purchase Managers
Checking supplier invoices and estimating material cost before placing orders.
Structural & Mechanical Engineers
Quick self-weight and dead-load estimates, and section properties for preliminary design.
Engineering Students
Checking assignment calculations and learning where the standard formulas come from.
Standards & References We Use
Our reference data comes from these Indian and international standards:
| Standard | Covers | Used In |
|---|---|---|
| IS 2062 | Structural steel grades (E250, E350 …); MS weights use the standard density of 7,850 kg/m³ | All MS calculators |
| IS 808 | Beam, channel and angle sections — dimensions, mass and properties (1989 tables; 2021 is current) | Angle, Channel, Beam, IS 808 table |
| IS 1786 | TMT bars — nominal mass per metre, grades Fe 415 to Fe 600 | TMT Bar calculator |
| IS 1239 (Part 1) | MS/GI pipes — OD, wall thickness, Light/Medium/Heavy classes, tolerances | Pipe calculator & chart |
| IS 4923 / IS 1161 | Square & rectangular hollow sections / circular structural tubes | Hollow Section calculator |
| IS 1852 | Rolling and cutting tolerances for hot-rolled products | Tolerance notes |
| ASME B36.10 | Pipe schedules — SCH 10, 40, 80, 160 wall thickness | Pipe chart |
| ISO 4017 / 4032 / 7089 | Hex bolt, hex nut and plain washer dimensions | Bolt calculator |
MetaCalc.in is an independent website and is not affiliated with or endorsed by the Bureau of Indian Standards (BIS) or any steel producer.
What Makes MetaCalc.in Different?
Built for India
Indian Standard sizes, IS 1239 pipe classes, ISMB/ISMC sections and rupee cost estimates.
Mobile-First
Designed for phone screens — because most calculations happen at the steel shop or site.
Instant Results
Calculations run in your browser as you type; no sign-up needed.
Free to Use
Every calculator and chart is free. The site is supported by advertising.
Formulas Shown
Each tool shows the formula and assumptions, so results can be checked by hand.
Checked Data
Reference tables are cross-checked against published standards and mill charts, and reported errors are corrected.
Accuracy & Limitations
All results are theoretical. Real steel is rolled within tolerances, so weighbridge weight can be a few percent above or below our figures, and cost estimates use indicative rates that change daily. Use MetaCalc.in for estimation and planning; for structural design or billing, confirm values from the applicable standard, the mill test certificate or your supplier. See our Disclaimer.
Get In Touch
Found a calculation error, or want a new calculator or material? We'd love to hear from you.
METACALC
Proprietorship · Micro Enterprise (Udyam Registered)
Gram Khurahuriya, Post Devkhaira,
Rohtas, Bihar – 821115, India
Udyam Reg. No: UDYAM-BR-28-0058765
© 2026 MetaCalc.in — Operated by METACALC · Free Online Metal Weight Calculator for India