Free Construction Calculators
110+ professional construction calculators. 100% free, no sign-up. Imperial and metric, PDF export, available in 40+ languages.
110 Calculators100% FreeNo Sign-Up
40+ Languages
Imperial + Metric
PDF Export
Mobile Friendly
Browse by Category
C
Concrete Structures14 calculators
Columns, beams, walls, stairs — RC design and material estimates
Concrete Bag Calculator — ft, bags, cost comparison
Concrete Bag Calculator — m, kg bags, cost comparison
Concrete Beam Calculator — ft, yd³, rebar
Concrete Beam Calculator — m, m³, rebar
Concrete Column Calculator — ft, yd³, rebar
Concrete Column Calculator — m, m³, rebar
Concrete Curb & Gutter Calculator — ft, yd³
Concrete Curb & Gutter Calculator — m, m³
Concrete Stairs Calculator — ft, yd³, bags, cost
Concrete Stairs Calculator — m, m³, bags, cost
Concrete Volume Calculator — ft, yd, bags
Concrete Volume Calculator — m, m³, bags
Concrete Wall Calculator — ft to cu yd, bags, cost
Concrete Wall Calculator — m, cm to m³, bags, cost
E
Earthwork10 calculators
Excavation, gravel, fill, topsoil, cut & fill — volume and hauling
Cut & Fill Calculator — ft, yd³ (Slope Grading)
Cut & Fill Calculator — m, m³ (Slope Grading)
Excavation Volume Calculator — ft to yd³, truck loads, cost
Excavation Volume Calculator — m to m³, truck loads, cost
Fill & Backfill Calculator — ft to yd³, tons, trucks, cost
Fill & Backfill Calculator — m to m³, tonnes, trucks, cost
Gravel / Aggregate Calculator — ft to tons, yd³, cost
Gravel / Aggregate Calculator — m to tonnes, m³, cost
Topsoil & Mulch Calculator — ft, yd³, bags
Topsoil & Mulch Calculator — m, m³, bags
Fi
Finishing10 calculators
Drywall, paint, tile, flooring, carpet — sheets, gallons, boxes
Carpet Calculator — ft to sq yd, rolls, cost
Carpet Calculator — m to m², rolls, cost
Drywall Calculator — ft, sheets, tape & cost
Drywall Calculator — m, sheets, tape & cost
Flooring Calculator — ft, sqft to boxes, planks, cost
Flooring Calculator — m, m² to packs, planks, cost
Paint Calculator — ft, sq ft, gallons & cost
Paint Calculator — m, m², liters & cost
Tile & Grout Calculator — ft, in to tiles, bags, cost
Tile & Grout Calculator — m, m² to tiles, bags, cost
F
Foundations12 calculators
Slabs, footings, piers, grade beams — volume, rebar, cost
Concrete Pier Calculator — ft to cu yd, bags, cost
Concrete Pier Calculator — m, cm to m³, bags, cost
Concrete Slab Calculator — ft to cu yd, bags, cost
Concrete Slab Calculator — m, cm to m³, bags, cost
Grade Beam Calculator — ft, yd³, rebar
Grade Beam Calculator — m, m³, rebar
Pile Cap Calculator — ft, yd³, rebar
Pile Cap Calculator — m, m³, rebar
Spread (Pad) Footing Calculator — ft, yd³, cost
Spread (Pad) Footing Calculator — m, m³, cost
Strip Footing Calculator — ft to cu yd, bags, cost
Strip Footing Calculator — m to m³, bags, cost
I
Insulation & Waterproofing12 calculators
Wall, roof, spray foam, house wrap, vapor barrier — R-value and rolls
House Wrap Calculator — ft, rolls, cost
House Wrap Calculator — m, rolls, cost
Roof & Attic Insulation Calculator — ft, R-value, cost
Roof & Attic Insulation Calculator — m, R-value, cost
Spray Foam Insulation Calculator — ft, sq ft, cost
Spray Foam Insulation Calculator — m, m², cost
Vapor Barrier Calculator — ft, rolls, cost
Vapor Barrier Calculator — m, rolls, cost
Wall Insulation Calculator — ft, R-value, cost
Wall Insulation Calculator — m, R-value, cost
Waterproofing Membrane Calculator — ft, sq ft, cost
Waterproofing Membrane Calculator — m, m², cost
L
Landscaping6 calculators
Pavers, driveways, post holes — materials and base layers
M
Masonry10 calculators
Brick, block, stone, retaining walls — units, mortar, grout
Block Wall Calculator — ft to blocks, mortar, cost
Block Wall Calculator — m to blocks, mortar, cost
Brick Wall Calculator — ft to bricks, mortar, cost
Brick Wall Calculator — m, cm to bricks, mortar, cost
Mortar & Grout Calculator — ft, bags, cost
Mortar & Grout Calculator — m, bags, cost
Retaining Wall Calculator — ft, blocks, cost
Retaining Wall Calculator — m, blocks, cost
Stone Veneer Calculator — ft, sqft, cost
Stone Veneer Calculator — m, m², cost
R
Roofing10 calculators
Shingles, metal panels, flat roof, gutters — materials and cost
Flat Roof Membrane Calculator — ft to rolls, adhesive, cost
Flat Roof Membrane Calculator — m to rolls, adhesive, cost
Gutter & Downspout Calculator — ft, cost
Gutter & Downspout Calculator — m, cost
Metal Roofing Panel Calculator — ft to panels, screws, cost
Metal Roofing Panel Calculator — m to panels, screws, cost
Roof Area & Pitch Calculator — ft, rise:run, degrees
Roof Area & Pitch Calculator — m, degrees, m²
Roof Shingles Calculator — ft, squares, bundles, cost
Roof Shingles Calculator — m, m², bundles, cost
S
Steel Structures10 calculators
Beams, columns, plates, rebar, bolts — weight and capacity
Bolt Pattern Calculator — in, lbs
Bolt Pattern Calculator — mm, kN
Rebar Calculator — ft, lbs, cost
Rebar Calculator — m, kg, cost
Steel Beam Weight Calculator — ft, lbs
Steel Beam Weight Calculator — m, kg
Steel Column Calculator — ft, load, section
Steel Column Calculator — m, load, section
Steel Plate Weight Calculator — ft, lbs
Steel Plate Weight Calculator — m, kg
T
Timber & Framing16 calculators
Decking, framing, fencing, trusses, joists — lumber and hardware
Board Feet / Lumber Calculator — ft, in to board feet, cost
Deck Calculator — ft, boards, joists, cost
Deck Calculator — m, boards, joists, cost
Fence Materials Calculator — ft, posts, boards, cost
Fence Materials Calculator — m, posts, boards, cost
Floor Joist Span Calculator — ft, in to joist size
Floor Joist Span Calculator — m, mm to joist size
Lumber Volume Calculator — m, cm to m³, dm³, cost
Plywood / OSB Calculator — ft to sheets, cost
Plywood / OSB Calculator — m to sheets, cost
Railing Calculator — ft, balusters, posts, cost
Railing Calculator — m, balusters, posts, cost
Stud Wall Framing Calculator — ft, studs, cost
Stud Wall Framing Calculator — m, studs, cost
Wood Roof Truss Calculator — ft, lumber
Wood Roof Truss Calculator — m, lumber
All calculators are 100% free, require no registration, and work on any device.