Construction Calculators
Free field-ready calculators for concrete, rebar, asphalt, earthwork, framing, roofing, and more. All results include standard waste factors and unit conversions.
π§± Concrete Volume
ydΒ³Calculate concrete for slabs, columns, and footings in cubic yards, cubic feet, and bag count.
ποΈ Concrete Footing
ydΒ³Estimate concrete for round, square, or continuous wall footings with depth and diameter inputs.
π© Rebar Weight
lbsEstimate the total weight of reinforcing steel bars by size, quantity, and length.
π£οΈ Asphalt Tonnage
tonsCalculate asphalt mix required for a paving area by thickness and compacted density.
βοΈ Earthwork Cut/Fill
ydΒ³Estimate cut and fill volumes for grading and earthwork using the average end area method.
π Slope / Grade
%Convert between percent grade, degree angle, and rise-over-run for any slope or drainage application.
πͺ¨ Gravel & Aggregate
tonsCalculate crushed stone, pea gravel, or aggregate in cubic yards, tons, and bags for driveways and base layers.
ποΈ Sand & Base Material
tonsEstimate sand, paver base, road base, or DGA in cubic yards, tons, and bag count with 10% waste factor.
π Trench & Backfill
CYCalculate excavation volume, backfill needed, spoil haul-off, and truck loads for utility and drainage trenches.
π Swell & Shrink
CYConvert bank, loose, and compacted soil volumes using swell and shrink factors for earthwork calculations.
π§² Retaining Wall
blocksEstimate block count, cap blocks, courses, and deadman anchors for standard, large, or natural stone retaining walls.
π Roofing Squares
squaresCalculate roofing squares, shingles, underlayment, and ridge cap for any roof pitch and area.
πͺ Stair Rise & Run
stepsCalculate stair risers, treads, stringer length, and tread board count for code-compliant stairs.
πͺ΅ Deck Materials
boardsEstimate decking boards, joists, posts, and hardware for wood or composite deck construction.
π¨ Lumber & Studs
studsCalculate stud count, top and bottom plates, headers, and sheathing sheets for framed walls.
π§ Fence Material
postsEstimate posts, rails, pickets, and concrete for wood privacy, picket, split rail, or chain link fences.
πͺ Drywall Sheets
sheetsCalculate drywall sheet count, joint compound, tape, and screws for walls and ceilings by room dimensions.
ποΈ Paint Coverage
galEstimate gallons of paint needed for walls, ceilings, or exterior surfaces by area and number of coats.
π² Tile & Flooring
boxesCalculate tile count, boxes, grout, and adhesive for ceramic tile, LVP, hardwood, laminate, or carpet.
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