Concrete Slab Estimator
Estimate cubic yards and bag counts for rectangular concrete slabs.
All Tools
141 free construction calculators for concrete, masonry, framing, roofing, excavation, and cost takeoffs.
Concrete Column Calculator
Find concrete volume for round or rectangular columns and piers.
Concrete Footing Calculator
Estimate concrete for continuous and pad footings by size.
Concrete Mix Ratio Calculator
Convert mix ratios into batch quantities for cement, sand, and aggregate.
Cement Bags Calculator
Estimate cement bag counts from mix volume and bag size.
Sidewalk Concrete Calculator
Estimate concrete for sidewalks and walkways by length and width.
Driveway Concrete Calculator
Estimate yards of concrete for residential driveways.
Patio Slab Calculator
Calculate concrete for outdoor patio slabs and seating pads.
Concrete Formwork Calculator
Estimate contact area of forms for walls, slabs, and columns.
Bag Yield Concrete Calculator
Convert bag yields into pour coverage for a given thickness.
Foundation Wall Concrete Calculator
Estimate concrete for poured foundation and basement walls.
Water-Cement Ratio Helper
Estimate water quantity from cement weight and target ratio.
Brick Wall Calculator
Estimate brick counts and mortar for wall area.
CMU Block Wall Calculator
Estimate concrete blocks and mortar for CMU walls.
Mortar Mix Calculator
Estimate mortar bags or volume for brick and block work.
Brick Veneer Calculator
Estimate brick veneer units for cladding area.
Retaining Block Calculator
Estimate interlocking retaining wall blocks by face area.
Masonry Wall Ties Calculator
Estimate wall tie quantity for veneer and cavity walls.
Mortar Joint Estimator
Estimate mortar volume from joint size and masonry area.
Firebrick Calculator
Estimate firebrick counts for fireplaces and hearths.
CMU Grout Volume Calculator
Estimate grout fill for reinforced CMU cells.
Paver Brick Calculator
Estimate brick pavers for patios and walkways.
Board Feet Calculator
Convert lumber dimensions into board feet for ordering.
Wall Stud Count Calculator
Estimate studs for framed walls by length and spacing.
Joist Span Helper
Estimate joist counts and review span inputs for floors.
Deck Boards Calculator
Estimate decking boards for rectangular deck surfaces.
Fence Posts Calculator
Estimate fence posts from run length and post spacing.
Header Lumber Estimator
Estimate header and king/jack stud lumber at openings.
Plate Lumber Calculator
Estimate top and bottom plate linear footage for walls.
Rafter Count Calculator
Estimate common rafter pieces from roof length and spacing.
Wall Sheathing Calculator
Estimate OSB/plywood sheets for wall sheathing area.
Bridging & Blocking Estimator
Estimate blocking and bridging pieces between joists.
Stair Stringer Lumber Calculator
Estimate stringer board feet for straight stairs.
Roof Pitch Calculator
Convert rise/run into pitch, angle, and slope factor.
Roofing Squares Calculator
Convert roof area into roofing squares for ordering.
Shingle Bundle Calculator
Estimate asphalt shingle bundles from roof squares.
Metal Roofing Estimator
Estimate metal panel coverage from roof area and panel width.
Roof Underlayment Calculator
Estimate underlayment rolls from roof surface area.
Ridge Cap Calculator
Estimate ridge and hip cap shingles by length.
Roof Drip Edge Estimator
Estimate drip edge linear feet for eaves and rakes.
Flat Roof Membrane Calculator
Estimate membrane coverage for low-slope roofs.
Roof Ventilation Helper
Estimate net free ventilation area from attic floor area.
Flooring Area Calculator
Calculate floor covering area with waste for rooms.
Tile Count Calculator
Estimate tile pieces and boxes for floors and walls.
Hardwood Flooring Calculator
Estimate hardwood cartons from room area and coverage.
Laminate Flooring Calculator
Estimate laminate planks and packs for room installs.
Vinyl Plank (LVP) Calculator
Estimate luxury vinyl plank cartons for floors.
Carpet Estimator
Estimate carpet square yards from room dimensions.
Tile Thinset Calculator
Estimate thinset bags from tiled area and bag coverage.
Tile Grout Bags Calculator
Estimate grout bags from tile size and joint width.
Baseboard Trim Calculator
Estimate baseboard linear feet around rooms.
Paint Coverage Calculator
Estimate gallons from wall area, coats, and coverage rate.
Exterior Paint Calculator
Estimate exterior siding paint gallons with waste.
Ceiling Paint Calculator
Estimate ceiling paint gallons for flat ceilings.
Primer Coverage Calculator
Estimate primer gallons for new drywall or sealed surfaces.
Wallpaper Rolls Calculator
Estimate wallpaper rolls from wall area and roll coverage.
Wood Stain Coverage Calculator
Estimate stain quarts/gallons for decks and trim.
Epoxy Floor Coating Calculator
Estimate epoxy kit coverage for garage floors.
Spray Paint Area Estimator
Estimate spray cans or gallons for small coated areas.
Excavation Cut Calculator
Estimate cut volume for trenches and pads in cubic yards.
Fill Compaction Calculator
Estimate fill volumes accounting for compaction shrinkage.
Gravel Tonnage Calculator
Estimate gravel tons from area, depth, and density.
Sand Cubic Yards Calculator
Estimate sand volume for base, bedding, and fill.
Dumpster Volume Calculator
Estimate dumpster size needs from demolition volume.
Haul Trips Calculator
Estimate truck trips from material volume and truck capacity.
Trench Excavation Calculator
Estimate trench cut volume for utilities and footings.
Topsoil Calculator
Estimate topsoil yards for lawns and landscape beds.
Mulch Cubic Yards Calculator
Estimate mulch yards for beds at a target depth.
Soil Moisture Content Helper
Estimate moisture content from wet and dry sample weights.
Rebar Weight Calculator
Estimate rebar weight from bar size and total length.
Rebar Mesh Calculator
Estimate welded wire mesh sheets for slabs.
Footing Rebar Calculator
Estimate longitudinal and transverse bars in footings.
Slab Rebar Estimator
Estimate rebar for two-way slab mats by spacing.
Column Ties Rebar Calculator
Estimate column vertical bars and tie sets.
Wall Rebar Estimator
Estimate vertical and horizontal wall reinforcement.
Rebar Lap Splice Helper
Estimate added length for tension lap splices.
Dowel Bar Calculator
Estimate dowels between slabs, walls, and footings.
Rebar Chair Estimator
Estimate plastic/metal chairs for slab reinforcement support.
Drywall Sheets Calculator
Estimate drywall sheets for walls and ceilings.
Insulation R-Value Helper
Estimate batts or continuous insulation for target R.
Drywall Mud Calculator
Estimate joint compound buckets for taping finishes.
Drywall Tape Calculator
Estimate paper or mesh tape rolls for joints.
Corner Bead Estimator
Estimate metal/vinyl corner bead linear feet.
Sound Batt Insulation Calculator
Estimate acoustic batts for interior partition cavities.
Spray Foam Board-Feet Calculator
Estimate spray foam board feet from area and thickness.
Vapor Barrier Calculator
Estimate poly sheeting rolls for floors and walls.
Acoustic Sealant Estimator
Estimate acoustical sealant tubes for partition perimeters.
Stair Calculator
Calculate rise, run, risers, and treads for straight stairs.
Ramp Slope Calculator
Check ramp slope, length, and rise relationships.
Spiral Stair Helper
Estimate tread count and plan diameter inputs for spirals.
Stair Tread & Nosing Estimator
Estimate tread boards and nosing lengths for straight stairs.
Handrail Length Calculator
Estimate handrail length along stair pitch.
Stair Landing Area Calculator
Estimate landing platform area and framing needs.
Accessible Ramp Landing Helper
Estimate landing sizes for accessible ramp runs.
Stair Headroom Checker
Estimate clear headroom along a stair slope.
Asphalt Tons Calculator
Estimate asphalt tonnage from area and lift thickness.
Asphalt Driveway Calculator
Estimate asphalt for residential driveways.
Parking Lot Asphalt Calculator
Estimate asphalt tons for parking areas and lanes.
Asphalt Base Stone Calculator
Estimate aggregate base tons under asphalt pavements.
Sealcoat Coverage Calculator
Estimate sealcoat gallons for asphalt surfaces.
Paver Base & Sand Calculator
Estimate base gravel and bedding sand for paver systems.
Chip Seal Estimator
Estimate binder and aggregate for chip seal treatments.
Curb Concrete Calculator
Estimate concrete for extruded or formed curbs.
Material Cost Calculator
Estimate material budgets from quantity and unit price.
Labor Cost Calculator
Estimate labor cost from hours, crew size, and rates.
Concrete Cost Estimator
Estimate concrete pour cost from yards and price per yard.
Lumber Cost Estimator
Estimate framing lumber cost from board feet and price.
Roofing Cost Estimator
Estimate roofing material cost per square.
Flooring Cost Estimator
Estimate flooring material cost per square foot.
Excavation Cost Estimator
Estimate excavation cost from yards and price per yard.
Scaffolding Cost Helper
Estimate scaffold rental from elevation area and duration.
Waste Factor Cost Helper
Apply waste percentages to quantities and costs.
Crew Productivity Cost Helper
Estimate hours from production rates and quantities.
Pipe Volume Calculator
Estimate internal volume of pipes for water capacity.
Pipe Length Takeoff Helper
Estimate pipe linear feet from run segments.
Drain Pipe Slope Helper
Estimate fall over run for drainage pipe slopes.
Water Heater Capacity Helper
Estimate storage volume needs from fixture demand inputs.
PEX Tubing Estimator
Estimate PEX tubing length for branch layouts.
Pipe Insulation Calculator
Estimate pipe insulation linear feet by diameter.
Fixture Unit Rough Helper
Educational tally helper for plumbing fixture counts.
Water Line Length Helper
Estimate developed length for pressure-loss discussions.
Wire Length Takeoff Helper
Estimate conductor lengths from run distances and circuits.
Conduit Fill Helper
Educational helper for conduit cross-section planning.
Box Fill Volume Helper
Estimate box volume from dimensions for planning.
Lighting Circuit Count Helper
Estimate lighting circuits from load assumptions.
Cable Tray Length Helper
Estimate cable tray linear feet for routes.
Ground Rod Estimator
Estimate ground rods and conductor for electrode systems.
Device Count Estimator
Estimate outlets and switches from room counts.
Voltage Drop Length Helper
Estimate one-way conductor length inputs for VD talks.
Construction Unit Converter
Convert length, area, and volume units used on jobsites.
Circle Area Calculator
Calculate area and circumference from radius or diameter.
Triangle Area Calculator
Calculate triangle area from base and height or sides.
Trapezoid Area Calculator
Calculate trapezoid area from parallel sides and height.
Cylinder Volume Calculator
Calculate cylinder volume for tanks, piers, and pipes.
Rectangle Area & Volume Calculator
Calculate rectangular area and prism volume.
Waste Factor Quantity Calculator
Increase net quantities by a waste percentage.
Bag Yield Coverage Calculator
Estimate coverage from bag yield and thickness.
Mix Ratio Parts Calculator
Scale mix ratios to batch sizes by parts.
Form Contact Area Calculator
Calculate form contact area for rectangular elements.
Scaffolding Bay Estimator
Estimate scaffold bays from wall length and height.
Generic Haul Trips Calculator
Estimate trips from any bulk volume and truck size.