All calculators
Free, accurate calculators for home improvement, DIY materials, and landscaping. Search or browse by category.
Concrete & Masonry
View categoryConcrete Calculator
Estimate cubic yards, bags, and cost of concrete for slabs, footings, and columns.
Concrete Slab Calculator
Estimate cubic yards and bags of concrete for a rectangular slab.
Concrete Footing Calculator
Estimate cubic yards and bags of concrete for continuous footings.
Concrete Column Calculator
Estimate concrete for round columns, piers, and tube forms.
Concrete Stairs Calculator
Estimate concrete for poured steps and staircases.
Asphalt Calculator
Estimate tons and cubic yards of asphalt for driveways and paving projects.
Paver Calculator
Find how many pavers you need for a patio, walkway, or driveway.
Retaining Wall Calculator
Estimate blocks, courses, and base gravel for a retaining wall.
Post Hole Concrete Calculator
Estimate concrete bags per hole for fence, deck, and mailbox posts.
Rebar Calculator
Estimate rebar bar counts and total length for a slab grid.
Brick Calculator
Estimate how many bricks you need for a wall, plus waste.
Concrete Block Calculator
Estimate CMU blocks and mortar bags for a block wall.
Landscaping
View categoryMulch Calculator
Estimate cubic yards and bags of mulch, compost, or bark for garden beds.
Gravel Calculator
Find tons and cubic yards of gravel or crushed stone for driveways and paths.
Topsoil Calculator
Estimate cubic yards and bags of topsoil by area and depth.
Sand Calculator
Estimate tons and cubic yards of sand for paver bases and fill.
Stone Calculator
Estimate tons and cubic yards of crushed or decorative stone.
Pea Gravel Calculator
Estimate tons and cubic yards of pea gravel for paths and patios.
Landscape Rock Calculator
Estimate tons and cubic yards of decorative landscape rock.
Sod Calculator
Estimate square feet, rolls, and pallets of sod for a new lawn.
French Drain Calculator
Estimate gravel and pipe for a French drain trench.
Excavation Calculator
Estimate dirt volume, tons, and truckloads to excavate or haul.
Gravel Driveway Calculator
Estimate tons and cubic yards of gravel for a driveway at the right depth.
River Rock Calculator
Estimate tons and cubic yards of river rock for beds, borders, and drainage.
Carpentry
View categoryBoard Foot Calculator
Calculate board feet of lumber from thickness, width, length, and quantity.
Deck Board Calculator
Estimate how many deck boards you need for your deck size.
Stair Calculator
Calculate the number of steps, rise, and run from total height.
Stair Stringer Calculator
Calculate stringer length and notch dimensions for a staircase.
Rafter Calculator
Calculate rafter length and count from span, pitch, and spacing.
Baluster Spacing Calculator
Find the baluster count and exact even gap for a railing.
Roofing & Siding
View categoryInterior Projects
View categorySquare Footage Calculator
Calculate the area of a room or surface in square feet, yards, and meters.
Drywall Calculator
Estimate drywall sheets for walls and ceilings.
Paint Calculator
Estimate gallons of paint by wall area, coats, and openings.
Flooring Calculator
Estimate boxes of flooring with a waste factor for any room.
Tile Calculator
Find how many tiles you need for a floor or wall.
Insulation Calculator
Estimate insulation batts or rolls by area.
Grout Calculator
Estimate pounds of grout needed for your tile job.
Wallpaper Calculator
Estimate how many rolls of wallpaper a room needs.