Volume (yd³) NEW
Slab • Trench • Column + waste + trucks
OpenConcrete Calculators
Zero ads • Offline • Voice commands • Copy-to-clipboard • Built for hardhats
Truck Loads
9.0 / 9.5 / 10.0 comparison
OpenYield & Rel. Yield
Bucket factor • batch totals • theoretical air
Openw/c • w/cm
With SCM
OpenMoisture Adjust
Water add/remove + new w/cm
OpenEvaporation Rate
≥ 0.20 caution (ACI 305)
OpenFresh Temp
Component estimate
OpenCylinder Planner
7/14/28 or custom
OpenRebar Takeoff
Count • length • weight
OpenJoint Spacing
2–3× thickness
OpenSlope / Grade
Rise • run • %
OpenPump Time
yd³/hr pacing
OpenTruck Cycle
Fleet supply check
OpenCoverage
ft² → gallons
OpenInsulation
Layers • wet penalty • heater • Required R
OpenStrength Gain
Heuristic curve
OpenUnit Converter
psi • MPa • pcf • kg/m³ • °F • °C
OpenMax Temperature NEW
Mix heat + thickness/exposure (ΔT check)
OpenSelect a calculator above
Tap a card or say: “40 by 80 slab 6 inches”