/// Built for the job before the job
Construction Material Calculators
for Order-Ready Estimates
ProjectQty provides 41 free construction material calculators for concrete, gravel, roofing, flooring, landscaping, and more. Enter imperial or metric measurements to get transparent quantity estimates, order-unit rounding, worked formulas, and source-backed assumptions. No account is required, and calculations stay in your browser.
Concrete / quick estimateImperial
Slab dimensions
ft
ft
in
%
Order-ready volume
Open full concrete calculator 3.26yd³
Base 2.96 yd³ · includes 10% waste- No sign-up
- Imperial + metric
- Print-ready results
/// Start with the order output
Which construction calculator should I use?
Choose the project closest to your task, then replace every planning assumption with the dimensions, product data, and supplier information that apply to your job.
| Project type | Calculator | Order output | Key assumption |
|---|---|---|---|
| Concrete slab or pour | Concrete Calculator | Cubic yards and whole bags | Finished depth, waste, and selected product yield |
| Driveway or aggregate base | Gravel Calculator | Cubic yards and estimated tons | Compacted depth and supplier density |
| Interior wall finish | Paint Calculator | Gallons or one-gallon equivalents | Coats, openings, and label coverage |
| Roof replacement | Roofing Material Calculator | Squares, bundles, rolls, and fasteners | Pitch, waste, and product coverage |
| Landscape bed | Mulch Calculator | Cubic yards or cubic meters | Placed depth and local bulk unit |
/// Five continuous workflows
Project guides
Keep several calculator results in one named project. Progress stays in this browser, and every carried-forward value requires review before it reaches the next calculator.
01
Roof replacement4 calculator steps · browser-local progress
02Room renovation5 calculator steps · browser-local progress
03Patio build3 calculator steps · browser-local progress
04Masonry wall4 calculator steps · browser-local progress
05Landscape bed5 calculator steps · browser-local progress
Already started? Open your local Projects workspace.
/// 41 field-ready tools
Construction calculators
Start with the material or geometry you need. Each calculator keeps its own formula, worked example, assumptions, sources, and supplier-ready output.
Showing 41 of 41 calculators
12 tools
Core material & geometry
01ConcreteEstimate concrete volume and cubic yards, with optional package counts scoped to QUIKRETE Concrete Mix No. 1101 yields.02GravelTurn driveway, path, base, and drainage-bed dimensions into cubic yards and estimated tons, with an editable bulk density.03AsphaltEstimate hot-mix asphalt volume and tons for driveways, patches, and paved areas using an editable mix density.04StoneEstimate decorative stone, crushed stone, and aggregate volume in cubic yards plus planning tons for multiple beds or paths.05TopsoilCalculate topsoil cubic yards for lawns, raised beds, grading, and planting areas, with optional tonnage and local price inputs.06PaverEstimate individual paver count from project dimensions, paver size, cutting waste, and an optional local per-piece price.07Slab CostCalculate slab concrete quantity and apply your local ready-mix cubic-yard price or bag price without pretending a national average is a live quote.08VolumeCalculate box or cylinder volume and convert the result across cubic feet, cubic yards, cubic meters, and liters.09Cubic FeetFind cubic feet for boxes and cylinders, then see cubic yards, cubic meters, and liters without a separate conversion step.10StairEstimate riser count, actual riser height, tread count, total run, and straight stringer length from floor-to-floor rise.11Roof PitchConvert roof rise and run into x-in-12 pitch, slope percentage, angle, multiplier, and a planning rafter length.12Excavation & FillCalculate excavation and optional fill as separate rectangular volumes, with editable loose or fill planning adjustments and no assumed soil density.
08 tools
Masonry & base materials
13BrickEstimate brick count from net wall area, actual brick face dimensions, mortar-joint width, and cutting or breakage allowance.14Concrete BlockEstimate concrete masonry units for a net wall area using specified block dimensions, mortar joints, openings, and waste.15MortarTurn a brick or block count into whole mortar bags using an editable units-per-bag yield and a visible waste allowance.16CementEstimate finished mix volume, dry ingredient volume, and cement bags from project dimensions, an editable dry-volume factor, mix ratio, bag volume, and waste.17SandCalculate sand volume for bedding, fill, leveling, play areas, or landscape work without inventing a universal material weight.18RebarEstimate two-direction rebar grid runs, total length, and stock-length pieces from slab dimensions, spacing, layers, and waste.19Concrete FootingEstimate net footing concrete, volume with a project allowance, whole bags from a product-specific yield, and optional local material cost.20Post Hole ConcreteEstimate the annular concrete volume around identical round posts, then calculate whole bags from the selected product yield and a visible allowance.
10 tools
Interior finishes
21TileEstimate individual tiles and full boxes from surface dimensions, actual tile face size, pieces per box, and layout waste.22FlooringEstimate floor area with waste and convert it into full flooring boxes using the exact coverage printed on the selected package.23CarpetEstimate carpet area and linear roll length from room dimensions, selected roll width, and a visible allowance for seams and cuts.24DrywallEstimate whole drywall sheets from net wall area, selected panel dimensions, openings, and cutting allowance.25PaintEstimate coated surface area, exact paint volume, and whole-unit planning quantity from room dimensions, openings, coats, and coverage.26WallpaperEstimate wallpaper rolls from room perimeter, wall height, major openings, usable roll coverage, and pattern allowance.27InsulationEstimate insulation packages from net wall area, product coverage, openings, and cutting allowance without selecting an R-value.28Baseboard & TrimEstimate linear trim requirement and whole stock lengths from room perimeter, excluded doorways, selected stock length, and cutting waste.29Tile GroutEstimate grout weight and whole packages from tiled area, tile and joint geometry, an exact product factor, waste, and the selected package weight.30Ceiling TileEstimate net ceiling area, area with waste, individual ceiling tiles, and full cartons from room dimensions and selected product packaging.
07 tools
Exterior & structure
31FenceEstimate a conservative post upper-bound plus pickets and rail length from total run, gate width, explicit gate posts, post spacing, picket module, rails, and waste.32DeckingEstimate deck-board rows, total board length, and whole stock boards from deck dimensions, board width, gap, stock length, and waste.33SidingEstimate siding area, squares, and full packages from wall dimensions, major openings, product coverage, and cutting allowance.34Roofing MaterialEstimate sloped roof area, roofing squares, shingle bundles, underlayment rolls, and fasteners from a simple footprint and pitch.35GutterEstimate whole gutter sections and planning downspout count from measured eave length, stock section length, spacing, and cutting allowance.36Board FootCalculate board feet from entered thickness, width, length, quantity, and waste while keeping nominal and actual dimensions explicit.37Wall StudEstimate regularly spaced wall studs plus an explicit allowance for corners, intersections, and openings, then apply waste.
04 tools
Landscaping
38MulchCalculate mulch volume for rectangular beds from placed depth and waste, without inventing a universal bag or bulk weight.39SodEstimate whole sod rolls or slabs from lawn dimensions, the supplier's stated coverage per unit, and a cutting allowance.40Grass SeedEstimate seed weight and whole bags from lawn area, the exact label application rate, bag weight, and a field allowance.41CompostCalculate compost volume for beds or topdressing from area, applied depth, and waste while keeping product weight unspecified.
/// A quantity you can defend
From tape measure to supplier list.
ProjectQty keeps the path visible. Change an input and see exactly which order quantity changes.
- 01
Measure the space
Add rectangular or circular areas instead of hiding irregular projects inside one estimate.
- 02
Set assumptions
Choose waste, package size, density, or a local price. Defaults stay visible and editable.
- 03
Verify the order
Review base quantity, adjustment, order-unit rounding, formula, and sources before buying.
/// No mystery numbers
A calculator should show its work.
Material estimates are sensitive to field measurements, moisture, compaction, mix design, packaging, and supplier rules. We make those variables explicit instead of dressing one national average up as certainty.
Review the source register Reproduce five validation cases- Geometry
- Auditable formulas for boxes, cylinders, slopes, and totals.
- Material data
- Manufacturer or public references where available; custom density where variation matters.
- Pricing
- Your current local price stays separate from quantity. No scraped or falsely “live” national number.
- Privacy
- No account, address, contact details, or project dimensions sent to analytics.