Rebar Weight Calculator
Weight of reinforcing bar by size, length and quantity.
Runs in your browser — nothing is uploaded—
Details
Material estimates only — add waste, confirm quantities with your supplier and follow local building codes. Not an engineering guarantee.
How to use Rebar Weight Calculator
- Enter your values — the unit for each field is shown next to it.
- The result updates instantly as you type.
- Copy the results, or change inputs to compare scenarios.
Formula & assumptions
kg/m = d² ÷ 162.2 (d = bar diameter in mm, steel at 7,850 kg/m³)