Rebar Calculator
Calculate rebar quantity, spacing, weight, and total length for concrete reinforcement.
How to Use the Rebar Calculator
- 1
Enter slab/footing dimensions
Input length, width, and thickness of the concrete element.
- 2
Select rebar size and spacing
Choose bar size and on-center spacing.
- 3
View rebar quantities
See total bars, linear feet, weight, and tie wire needed.
💡 Tips & Tricks
- •Place rebar on chairs/supports to maintain proper cover (minimum 3" from ground, 1.5" from forms).
- •Tie intersections with wire — do not weld rebar unless specifically engineered.
- •Add 10% to linear footage for overlaps and waste from standard 20-ft lengths.
Frequently Asked Questions
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