Rebar Calculator
Calculate the total weight, length, and number of rebar needed for a concrete slab, wall, or footing based on dimensions and rebar spacing.
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How to use this tool?
- 1 Enter the requested data in the fields above carefully.
- 2 Click the calculate button to process the information instantly.
- 3 Analyze the detailed result and the formula explanation presented below.
- 4 You can print, share, or even embed the calculator on your own site for free.
Unlike traditional static calculators, our tools adapt to specific user needs. They include detailed explanations of the formulas used, ensuring transparency in results. Furthermore, our design is focused on user experience, eliminating distractions and focusing on what really matters: your data and conclusions.
Previous Results
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Frequently Asked Questions
Enter the length and width of your slab in feet, the spacing between rebar in inches, select the rebar size, and the number of layers. Click Calculate to get the total rebar length, number of bars, and weight.
The calculator includes sizes #3 through #10, which are common in construction. The weight per foot is based on standard imperial sizes.
No, this calculator assumes straight bars without overlap. For overlapping, you may need to add extra length manually.
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