Materials & making
Quantities for your home, garden and woodworking.
Landscaping & Yard
Mulch Calculator
Find out how much mulch you need in cubic yards or bags. Includes weight, delivery loads, and cost — with adjustable density.
Topsoil Calculator
Calculate topsoil in cubic yards or bags for lawns, beds and raised beds. Shows weight, delivery loads and cost.
Gravel Calculator
Calculate gravel in cubic yards or tons for driveways, paths and drainage. Includes depth guidance and weight per load.
Sand Calculator
Work out how much sand you need in cubic yards, tons or bags. Includes paver bedding depth and weight per load.
Compost Calculator
Calculate compost in cubic yards or bags for lawns, garden beds and raised beds, with depth guidance and weight.
River Rock Calculator
How much river rock you need in cubic yards or tons, with recommended depth and weight per load.
Crushed Stone Calculator
Crushed stone calculator for base layers under pavers, driveways and slabs. Yards, tons, weight and depth guidance.
Sod Calculator
Calculate how much sod you need in pallets and rolls. Covers cool-season rolls and warm-season slabs, with pallet weight.
Grass Seed Calculator
Grass seed calculator with seeding rates per 1,000 sq ft for fescue, bluegrass, ryegrass, bermuda and zoysia — new lawn and overseeding.
Fertilizer Calculator
Lawn fertilizer calculator. Converts a target nitrogen rate and your bag N-P-K into pounds of product for your lawn size.
Fence Calculator
Fence calculator for posts, sections, rails and concrete. Works for wood, vinyl and chain link at any post spacing.
Retaining Wall Calculator
Retaining wall block calculator. Gives block count by course, cap blocks and base stone for segmental block walls.
Paver Calculator
Paver calculator for patios, walkways and driveways. Paver count by size with waste allowances for running bond, diagonal and herringbone.
Plant Spacing Calculator
Plant spacing calculator for ground cover, shrubs and bedding plants. Staggered and square grid layouts with plant counts.
Concrete & Base
Concrete Slab Calculator
Calculate concrete for a slab in cubic yards and bags. Shows bag counts for 40, 60 and 80 lb bags plus the ready-mix threshold.
Paver Base Calculator
Calculate the crushed stone base and sand bedding for a paver patio or walkway, including compaction allowance.
Concrete Footing Calculator
Concrete footing calculator for round tube forms and square footings. Bag count, cubic yards and weight from diameter, depth and quantity.
Concrete Steps Calculator
Concrete steps calculator. Volume, bags and cubic yards for poured steps, using the correct stacked-slab formula.
Rebar Calculator
Rebar calculator for slab grids. Bar count each way, total linear feet, sticks to buy and number of intersections to tie.
Asphalt Calculator
Asphalt calculator for driveways and paths. Tons and cubic yards from area and compacted thickness, with adjustable density.
Excavation Calculator
Excavation calculator. Cubic yards of soil to remove, weight, and haul-away loads — including the swell that catches people out.
Interior Finishes
Tile Calculator
Tile calculator for floors and walls. Tile count by size with waste for diagonal and herringbone layouts, plus thinset and grout.
Thinset Calculator
Thinset mortar calculator. Bag count by trowel notch size for standard and large-format tile.
Grout Calculator
Tile grout calculator. Pounds of grout by tile size and joint width, with sanded versus unsanded guidance.
Paint Calculator
Paint calculator for interior walls. Gallons by wall area and coats, with door and window openings subtracted.
Ceiling Paint Calculator
Ceiling paint calculator. Gallons by room area and coats, with coverage guidance for flat and textured ceilings.
Drywall Calculator
Drywall calculator for sheets, screws, joint compound and tape. Subtracts door and window openings automatically.
Joint Compound Calculator
Drywall joint compound calculator. Gallons and boxes by wall area and finish level, based on USG published coverage.
Flooring Calculator
Flooring calculator for laminate, LVP and hardwood. Box count by coverage with waste for plank layout.
Carpet Calculator
Carpet calculator in square yards and square feet, with padding, and guidance on roll width and seam placement.
Baseboard Calculator
Baseboard and trim calculator. Linear feet and stick count with waste for miter cuts.
Wallpaper Calculator
Wallpaper calculator with realistic roll yield. Accounts for pattern repeat and trim waste on single and double rolls.
Underlayment Calculator
Floor underlayment calculator. Roll count for laminate, LVP and engineered floors, including seam overlap.
Subfloor Calculator
Subfloor calculator for plywood and OSB sheets, including screws and subfloor adhesive tubes.
Stain Calculator
Deck and wood stain calculator. Gallons by area, coats and coverage — with the real numbers for rough and weathered wood.
Primer Calculator
Primer calculator for walls and ceilings. Gallons by area and coats, with door and window openings removed.
Crown Molding Calculator
Crown molding calculator. Linear feet and piece count from room perimeter, with realistic waste for compound mitre cuts.
Caulk Calculator
Caulk calculator. Tubes needed from linear feet and bead diameter, derived from the 10.1 oz cartridge volume.
Epoxy Floor Calculator
Garage floor epoxy calculator. Gallons and kits from area and dry film thickness in mils, with the coverage formula shown.
Roofing & Exterior
Roof Pitch Calculator
Roof pitch calculator. Converts rise over run into degrees, slope factor and true roof area from the building footprint.
Roofing Shingles Calculator
Shingle calculator in squares and bundles. Three bundles per square, with waste guidance for hips, valleys and starter course.
Roof Underlayment Calculator
Roof underlayment calculator for 15 lb felt, 30 lb felt and synthetic. Roll count including overlap.
Ice Barrier Calculator
Ice and water shield calculator. Roll count for eave coverage and valleys, with code coverage guidance.
Ridge Cap Calculator
Ridge cap shingle calculator. Bundle count for ridges and hips, with ridge vent allowance.
Gutter Calculator
Gutter calculator for length, hangers, end caps and downspout count based on roof drainage area.
Siding Calculator
Siding calculator in squares and boxes for vinyl, fiber cement and lap siding, with openings subtracted.
Soffit Calculator
Soffit and fascia calculator. Panel area from overhang width and eave length, with vented panel guidance.
Stucco Calculator
Stucco calculator. Bags of mix from wall area and coat thickness, with doors and windows subtracted.
Fascia Calculator
Fascia calculator. Linear feet, board count, drip edge and nails for roof edge trim from the total run.
Driveway Sealer Calculator
Driveway sealer calculator. Gallons and 5-gallon pails from area and coats, with realistic coverage for rough and porous surfaces.
Woodworking & Decks
Board Foot Calculator
Board foot calculator for lumber. Converts thickness, width, length and quantity into board feet and cost.
Lumber Weight Calculator
Lumber weight calculator by board feet. Estimates weight for pine, fir, oak and pressure-treated lumber.
Deck Board Calculator
Deck board calculator. Board count by width and length with gap spacing, plus deck screws.
Deck Joist Calculator
Deck joist calculator. Counts joists and hangers at 12, 16 or 24 inch spacing for a given deck width.
Deck Railing Calculator
Deck railing calculator for posts, rails and balusters with the 4 inch sphere rule spacing.
Stair Calculator
Stair stringer calculator. Riser height, tread count, total run and stringer length from total rise.
Plywood Calculator
Plywood and OSB sheet calculator. Sheet count by area for sheathing, subfloor and cabinet work.
Fence Picket Calculator
Fence picket calculator. Board count for privacy and spaced picket fences by run length and picket width.
Joinery & Furniture
Miter Angle Calculator
Miter angle calculator for frames and boxes. Saw setting and interior angle for any number of sides, from triangles to twenty-sided rings.
Compound Miter Calculator
Compound miter calculator. Miter and bevel angles for canted boxes, hoppers, planters and crown molding, with the trigonometry shown.
Cut List Calculator
Cut list calculator. Pieces per board and boards needed from stock length, piece length and saw kerf.
Wood Movement Calculator
Wood movement calculator. Shrinkage and swelling in inches by species, cut and moisture change, using USDA Wood Handbook coefficients.
Panel Glue Up Calculator
Panel glue up calculator. Board count, glue joints and glue line length for a solid wood panel, allowing for jointing loss.
Mortise and Tenon Calculator
Mortise and tenon calculator. Tenon thickness, shoulder size and mortise depth from stock dimensions using the one-third rule.
Shelf Spacing Calculator
Shelf spacing calculator. Clear height per opening from cabinet height, shelf thickness and shelf count.
Table Seating Calculator
Table seating calculator. Seats for rectangular and round tables from size and place setting width, with room clearance.
Segmented Ring Calculator
Segmented ring calculator. Miter angle, inner and outer segment lengths and stock required for a segmented circle.
Wood Finish Calculator
Wood finish calculator. Ounces and quarts of oil, polyurethane, shellac or lacquer from surface area and coat count.
Insulation & Framing
Insulation Calculator
Insulation calculator for fiberglass batts and rolls. Bag count by area with R-value and cavity depth guidance.
Blown Insulation Calculator
Blown-in attic insulation calculator. Bag count by target R-value for cellulose and loose-fill fiberglass.
Stud Calculator
Wall stud calculator. Counts studs and top and bottom plates by wall length and stud spacing.
Vapor Barrier Calculator
Vapor barrier calculator. Roll count for 6 mil and 10 mil poly with overlap allowance for crawl spaces and slabs.
House Wrap Calculator
House wrap calculator. Roll count for 3 ft and 9 ft wide weather-resistive barrier including overlap.
Brick Calculator
Brick calculator. Brick count per square foot by brick size, plus mortar bags and sand.
Concrete Block Calculator
Concrete block calculator. CMU count per square foot with mortar bags and core fill volume.
Mortar Calculator
Mortar calculator. Bag count for brick and block laying, with sand quantities for site-mixed mortar.