Concrete calculators.
Measure separate concrete components, deduct known voids and intersections, then convert the combined quantity to your chosen supply format.
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Concrete Calculator
Calculate concrete in cubic yards or cubic metres for one pour or several sections. Add your allowance and supplier order increment.
Open calculatorConcreteConcrete Bag Calculator
Turn a concrete volume into whole bags using the yield printed on your chosen product.
Open calculatorConcreteGravel Calculator
Estimate gravel, crushed stone or aggregate in cubic yards, US tons and metric tonnes across one or several measured areas.
Open calculatorConcreteRebar Quantity Calculator
Count bars and total length from a grid you specify.
Open calculatorConcreteFormwork Calculator
Estimate the board length and face area around a rectangular pour.
Open calculatorConcreteVapor Barrier Calculator
Plan sheeting strips and rolls using your selected roll dimensions and overlap.
Open calculatorConcreteConcrete Footing Volume Calculator
Sum concrete for repeated footing segments and separately specified steps or voids.
Open calculatorConcreteConcrete Column Calculator
Estimate repeated round or rectangular columns, with explicit internal voids.
Open calculatorConcreteConcrete Wall Calculator
Sum wall segments, deduct openings and remove explicitly duplicated intersection volume.
Open calculatorConcreteTapered Slab Volume Calculator
Measure a rectangular concrete component whose thickness changes linearly between two ends.
Open calculatorConcreteConcrete Ring Volume Calculator
Measure circular concrete annuli such as collars from specified internal and external diameters.
Open calculatorConcreteConcrete Delivery Load Calculator
Split an existing concrete order into a supplier’s maximum loads and show the final partial-load surcharge.
Open calculatorConcreteConcrete Bag Yield Comparison Calculator
Compare bag purchases by their stated prepared yield and total delivery quote.
Open calculatorConcreteConcrete Form Contact Area Calculator
Measure multiple individual form faces and compare material hire by actual contact area.
Open calculatorConcreteMesh Sheet Lap Quantity Calculator
Count mesh sheets for a supplied rectangular grid while accounting for specified edge laps.
Open calculatorConcreteThickened Edge Concrete Calculator
Measure a supplied perimeter thickening without counting corner volumes twice.
Open calculatorConcreteTapered Base and Shaft Volume Calculator
Combine a straight cylindrical shaft with a specified tapered base.
Open calculatorConcreteSpecified Ribbed Slab Volume Calculator
Deduct intersections when counting two specified directions of concrete ribs.
Open calculatorConcreteConcrete Mixer Batch Plan Calculator
Separate mixer cycles, prepared bag yield and measured running time.
Open calculatorConcreteBagged versus Ready Mix Cost Calculator
Compare whole bags plus your mixing labor with a supplier’s rounded bulk billing.
Open calculatorConcreteForm Panel Reuse Schedule Calculator
Count peak form inventory across overlapping phases with supplied release times.
Open calculatorConnect these calculations
Measure and check your purchase assumptions
Why adding four edge strips can overcount slab corners
Does your thickened-edge takeoff count each corner twice?
Read guideguideMeasure shaft height separately from a tapered base
Where does the straight shaft begin in a composite volume?
Read guideguideDeduct intersections in a supplied concrete rib grid
Why is the sum of two directions of ribs larger than the actual material?
Read guideguideSeparate mixer drum size from usable batch yield
Which volume belongs in a mixer cycle estimate?
Read guidecomparisonMake bagged and bulk concrete quotes comparable
Are both quote totals pricing the same work and quantity?
Read guidetroubleshootingWhy a small depth error can dominate a volume estimate
Which measured dimension contributes the largest relative volume uncertainty?
Read guidecomparisonCompare all-phase form purchases with shared inventory
How many compatible panel packs are simultaneously needed?
Read guidetroubleshootingDo not substitute dry cement volume for prepared concrete yield
Why does a bag’s dry weight not determine the concrete order?
Read guideguideUse measured internal dimensions for round concrete forms
Can a nominal tube label stand in for its actual filled diameter?
Read guidetroubleshootingReconcile volume at crossing concrete wall segments
Is an intersection included in both wall segment measurements?
Read guideguideCheck void deductions against their own concrete component
Why can a correct total void still produce an invalid takeoff?
Read guidetroubleshootingFind an inch-to-foot thickness error before ordering
Why is a slab quantity twelve times larger than expected?
Read guideguideKeep enough precision before converting volume to bags
Can rounding a displayed volume change the whole-bag count?
Read guidecomparisonChoose component volumes over an unweighted average thickness
When does averaging several thicknesses misstate a concrete quantity?
Read guidetroubleshootingSeparate ordered, delivered and used concrete quantities
Which quantity should be compared with a supplier invoice?
Read guideguideChoose which concrete faces belong in form contact area
Does a top surface automatically need a form-face quantity?
Read guideguideKeep continuous strip lengths separate from station-to-station measurements
Are repeated strip segments measured over disjoint portions of the same run?
Read guideguideCompare prepared bag yield rather than dry weight
How can two differently sized bags be compared for the same prepared volume?
Read guideguideUnderstand partial concrete load billing
Why can billed volume exceed the physical volume in the final truck?
Read guideguideMeasure a component with linearly changing thickness
When is average endpoint thickness a valid volume input?
Read guideguideCount sheets with specified overlaps
Why is nominal sheet area insufficient for a lapped sheet grid?
Read guideguideSeparate form contact area from concrete volume
Which surfaces belong in a form-material order?
Read guide