Calculators
Concrete Calculator
Start with cubic yards for the shape you are pouring. Bags, curing, shotcrete, and the rest of the tools sit below.
Pouring conditions
Live field guide
Air, wind, humidity, and rain risk from Open-Meteo. Evaporation is finish and cure risk — not a no-pour. Do not work bleed water back into the slab; wait until the sheen is gone. We recommend pour unless it is freezing.
Portland, OR (HQ)
Volume Concrete uses location strictly for weather data. No tracking.
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All tools
Mix Design Chooser
Five questions. A published packet — or Call Dispatch.
Bags of Concrete
Flagship tool — bags, yards, and a Dispatch / quote result screen.
Concrete Volume
Slabs, footings, walls, columns, and stairs in cubic yards.
Curing Time
Walk-on, strip, and 28-day windows with Portland weather.
Shotcrete Pool
Shell yards for a rectangular pool. Ties to the 8-sack Stasis packet.
Annular Space
Grout between casing and carrier pipe.
Rebar & Mesh
Two-way bar grids and 5×10 sheet counts.
Mix Design Tool
Match placement, psi, and air to a catalog packet.
Fence Post-Hole
Holes, bags, and when a short load makes more sense.
Pipe Friction
Line-pump pressure from slump, hose, and rise.
Pool Heating
Gallons and hours to raise a rectangular pool.
ADA Ramp Guide
1:12 run, landings, and slab yards.