Engineering & Construction
Rebar Weight Calculator
Calculate rebar weight from diameter, length and the number of bars. The result uses a steel density of 7850 kg/m³ and shows the rounded d²/162 figure beside it.
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This runs entirely in your browser. Nothing you type is sent to a server.
How to use the Rebar Weight Calculator
- 1Enter the bar diameter in millimetres.
- 2Enter the length of one bar and how many bars you have.
- 3Read kilograms per metre and the total weight.
Questions
How much does a 12 mm bar weigh?
0.888 kg per metre at 7850 kg/m³. Ten bars of 12 m weigh about 106.6 kg.
Does this include laps?
No. The length you enter is the length that is weighed. Add lap and hooks before you type the length, or use the cutting-length calculator.