Calculate weight for Flat Sheet, Round Bar, Square Bar, Flat Bar, Hex Bar, Round Pipe, RHS, SHS, Angle, Channel, I-Beam and more — for MS, SS 304, SS 316, Aluminium, Copper, Brass. Multi-item list with total tonnage and print export.
Select shape → select material → enter dimensions → instant weight. Add multiple items to build a total project weight list.
1 Select Shape
2 Select Material — Click to Auto-Fill Density
3 Enter Dimensions & Quantity
Standard weight per metre (kg/m) for common MS sections — IS standard sizes. Click any row to populate the calculator.
Click any row to populate the calculator above | All values for MS (density 7.85 g/cm³)
Exact formulas used in this calculator — all in practical units (mm dimensions, g/cm³ density = kg result)
Standard density values used in this calculator — all sourced from IS standards and international engineering references
Practical guidance for Indian fabricators, structural engineers and procurement teams
Many calculators default to 7.85 g/cm³ for all metals. SS 304 is 7.93, SS 316 is 7.98, aluminium is 2.70, copper is 8.96. On a 10MT SS 316 order, using 7.85 instead of 7.98 creates a 165 kg under-calculation — a significant billing discrepancy. Always select the correct grade material card in this calculator to auto-fill the right density.
For ISMB beams, ISMC channels, ISLB, ISJB, and ISA angles, the formulas in this calculator are simplified approximations. For structural design and procurement, always use the tabulated unit weights from IS:808:1989 (Dimensions for Hot Rolled Steel Beams, Columns, Channels and Angle Sections). IS:808 weights include fillet radii and taper, giving true section weight accurate to ±0.5%.
For project Bill of Quantities (BOQ), use the Add to List button to accumulate all items. The list shows each item's weight and auto-totals in kg and MT. Use Print to generate a hard-copy weight schedule or Copy to paste into Excel for your project estimation sheet. This avoids manual re-calculation errors common when totalling multiple section types.
Indian steel sections are supplied in standard mill lengths — MS bars and angles in 6m or 12m, pipes in 6m or 5.8m, RHS/SHS in 6m, plates in 2500mm, 5000mm, 6000mm. When calculating project weight, round up your required length to the next full mill length — fractional metres cannot be ordered from most Indian stockists without a cut charge and minimum order premium.
Indian pipe suppliers list pipe in Nominal Bore (NB) sizes — e.g. 50 NB, 80 NB — but the actual OD differs from NB. Always get the OD and wall thickness from the supplier's catalogue (IS:1239, IS:3589, or IS:9890) before calculating. For example, 50 NB heavy class = OD 60.3mm, WT 3.65mm. Using nominal bore as OD will give wrong weight. Use our pipe calculator with actual OD + WT values.
Useful on-site shortcuts for MS (7.85 g/cm³):
Round bar: D² × 0.000617 kg/m
Square bar: A² × 0.000785 kg/m
Flat bar: T×W × 0.00785 kg/m
Sheet: T(mm) × 7.85 = kg/m²
Hex bar: A² × 0.00068 kg/m
Memorise these for quick site estimates — use the calculator for final BOQ values.
Complete your project weight and cost estimation workflow
Common questions about metal weight calculation by shape in India