Free tools
Rebar calculator
Bars at a spacing across an area: how many, how much they weigh, and how many 12 m bars to order.
The working
- Bars per area: width ÷ spacing, plus one
- 0
- Laps per bar (12 m stock bars, 0 m lap)
- 0
- Total length: bars × length of each
- 0 m
- Weight per metre: d² ÷ 162 = 0² ÷ 162
- 0 kg/m
- Net weight
- 0 kg
- With 0% wastage
- 0 kg
Before you order
- This covers straight bars. Add bends, hooks, chairs and starter bars from your bar bending schedule.
- For a mesh, run this twice: once for each direction.
- Bars below the required grade, or lighter than their nominal weight, are a common site problem. Check mill certificates and weigh samples.
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