I-Beam Weight Calculator (ISMB)
Weight of an I-beam from its plate dimensions, with the ISMB quick table in the note.
Quick ISMB table (kg/m): 100→11.5 · 125→13.0 · 150→14.9 · 200→25.4 · 250→37.3 · 300→44.2 · 400→61.6 · 500→86.9.
Formula
I-Beam Weight Calculator (ISMB) is a free i beam weight for structural engineers, fabricators and site engineers — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About I-Beam Weight Calculator (ISMB)
Weight of an I-beam from its plate dimensions, with the ISMB quick table in the note. The calculation implements A = 2b·t_f + (h−2t_f)·t_w; W = A×0.00785 (IS 808 — ISMB sections). Quick ISMB table (kg/m): 100→11.5 · 125→13.0 · 150→14.9 · 200→25.4 · 250→37.3 · 300→44.2 · 400→61.6 · 500→86.9.
How to use I-Beam Weight Calculator (ISMB)
- 1Enter Depth in mm.
- 2Enter Flange width in mm.
- 3Enter Flange thickness (mean) in mm.
- 4Enter Web thickness in mm.
- 5Read Weight per metre, Total weight instantly — no submit button needed.
- 6Need US units? Flip the SI/Imperial toggle and every field converts.
Why use I-Beam Weight Calculator (ISMB)?
- ✓Implements the standard formula — A = 2b·t_f + (h−2t_f)·t_w; W = A×0.00785
- ✓Reference cited on-page: IS 808 — ISMB sections
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the I-Beam Weight Calculator (ISMB) use?+
It computes A = 2b·t_f + (h−2t_f)·t_w; W = A×0.00785, per IS 808 — ISMB sections. The formula is displayed under the result.
What should I keep in mind when using this calculator?+
Quick ISMB table (kg/m): 100→11.5 · 125→13.0 · 150→14.9 · 200→25.4 · 250→37.3 · 300→44.2 · 400→61.6 · 500→86.9.
Can I use this for real structural design?+
It implements the exact textbook/code formula cited below the result and is ideal for sizing, checking and learning. Final designs should be verified by a qualified engineer against the full code with all load cases.
Is the I-Beam Weight Calculator (ISMB) free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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