Fast · private · browser-only
Plan materials before placing the order.
Estimate asphalt, concrete, roofing, masonry, lumber, fencing, decking and other building materials.
Browse toolsFocused utilities
Construction Calculators
Asphalt calculator
Estimate compacted asphalt volume, weight and tons for a driveway, road or paved area.
Open tool Browser-onlyConcrete calculator
Calculate concrete volume in cubic yards and estimate the number of 60 lb or 80 lb bags.
Open tool Browser-onlyCubic yards
Convert rectangular length, width and depth into cubic yards, cubic feet and cubic metres.
Open tool Browser-onlyGravel and soil
Estimate cubic yards and weight for gravel, mulch, topsoil or another bulk landscaping material.
Open tool Browser-onlyRoofing shingles
Estimate sloped roof area, roofing squares and shingle bundles from plan dimensions and pitch.
Open tool Browser-onlyDrywall calculator
Estimate drywall area and sheet count for a rectangular room's walls and ceiling.
Open tool Browser-onlyBrick and mortar
Estimate bricks and planning-level mortar bags for a wall with openings.
Open tool Browser-onlyFence materials
Estimate fence sections, posts, rails and pickets from total length, gates and spacing.
Open tool Browser-onlyDeck materials
Estimate deck area, board rows, linear feet of decking and joist count.
Open tool Browser-onlyStair calculator
Calculate riser count, riser height, tread depth and approximate stair angle.
Open tool Browser-onlyBoard feet
Calculate lumber volume in board feet and estimate cost for multiple boards.
Open tool Browser-onlyRebar grid
Estimate reinforcing-bar rows, total linear feet and 20-foot stock bars for a rectangular slab.
Open tool Browser-onlyConcrete blocks
Estimate concrete masonry blocks for a wall after openings, nominal block size and waste.
Open tool Browser-onlyExcavation volume
Calculate in-place and loose excavation volume with soil swell and estimated truckloads.
Open tool Browser-onlyRetaining-wall blocks
Estimate courses, blocks per course and purchase quantity for a segmental retaining wall.
Open tool Browser-onlyPavers
Estimate paving-stone quantity from project dimensions, paver face size and cutting waste.
Open tool Browser-onlyPost-hole concrete
Estimate concrete volume and bag count for round post holes after subtracting the posts.
Open tool Browser-onlyConcrete footings
Calculate concrete yards and bag counts for continuous wall or foundation footings.
Open tool Browser-onlyConcrete stairs
Estimate concrete volume, riser height and tread depth for a solid stepped stair.
Open tool Browser-onlyRoof pitch
Convert rise and run into pitch per 12, roof angle, slope percentage and area factor.
Open tool Browser-onlyRoof area
Convert building footprint and roof pitch into sloped roof area, purchase area and roofing squares.
Open tool Browser-onlySiding quantity
Estimate net exterior wall area, siding purchase area and siding squares.
Open tool Browser-onlyGutters and downspouts
Estimate gutter sections, downspouts and hangers from the total eave run.
Open tool Browser-onlySand quantity
Estimate sand volume, weight and 50-pound bags for bedding, leveling or landscaping.
Open tool Browser-onlyAggregate base
Estimate compacted base volume, loose ordering volume and aggregate weight.
Open toolClear answers
About construction calculators
Are the construction calculators free?
Yes. Every tool in this collection is free to use without an account.
Does MW SysArc receive what I enter?
No. Inputs and calculations remain inside your browser and are not transmitted to or stored by MW SysArc.
Can I use the results for important decisions?
Treat results as practical estimates. Verify consequential academic, employment, financial or access decisions against the applicable rules and source records.