SlabCalc: Concrete & Rebar
Concrete calculator: cubic yards and bags, rebar, mesh and forms on a feet-inch keypad. Pay once, no ads.






For contractors and serious DIYers. Type 12' 6½" in five taps and get yards, bags, rebar and forms while you type. Pro is a one-time purchase.
Free
- Slabs, footings, pads, columns, sonotubes and post holes
- Cubic yards, cubic feet or m³ with waste
- Ready-mix rounded to the next ¼ yard
- 80, 60 and 40 lb bags, or 25 and 30 kg
Pro
- Walls, stairs and every concrete shape
- Rebar grid: bars, sticks, laps and weight
- Wire mesh, form boards and stakes
- Ready-mix vs bags cost with your prices
- Jobs: every pour in one order
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