Concrete Volume Calculator
Calculate concrete volume for a rectangular slab, footing, or pad.
Free tools for home improvement and construction projects
Free Construction Calculators
Estimate concrete, gravel, soil, flooring, roofing, fencing and other construction materials directly in your browser. No account required.
Popular calculators
Start with concrete volume, gravel volume, mulch, paint or roofing squares.
Concrete
Concrete Bag Calculator
Estimate the number of concrete bags needed for a project.
Concrete Weight Calculator
Estimate concrete weight from volume and density.
Concrete Footing Calculator
Estimate rectangular concrete footing volume.
Rebar Length Calculator
Estimate total rebar length from bar count and bar length.
Asphalt Calculator
Estimate asphalt volume for a rectangular area.
Gravel & Soil
Gravel Calculator
Calculate the volume of gravel required for an area.
Mulch Calculator
Calculate the amount of mulch required for a garden area.
Sand Calculator
Calculate sand volume required for an area.
Soil Calculator
Calculate soil volume required for a garden or planting area.
Gravel Weight Calculator
Estimate gravel weight from volume and bulk density.
Gravel Bag Calculator
Estimate the number of gravel bags needed from volume and bag coverage.
Interior
Paint Calculator
Estimate paint required from wall area, coverage and coats.
Flooring Calculator
Estimate flooring material including a waste allowance.
Tile Calculator
Estimate the number of tiles required for a floor or wall.
Drywall Calculator
Estimate drywall sheets required from room dimensions.
Baseboard Calculator
Estimate the number of baseboard pieces needed for a room.
Wallpaper Roll Calculator
Estimate wallpaper rolls from wall area and roll coverage.
Lumber & Decking
Board Feet Calculator
Calculate board feet from lumber dimensions and quantity.
Decking Board Calculator
Estimate decking board quantity for a rectangular deck.
General
Material Cost Calculator
Calculate total material cost from quantity, unit price and waste.
Cubic Yard Calculator
Convert rectangular dimensions into cubic yards.
Area Calculator
Calculate rectangular area from length and width.
Volume Calculator
Calculate rectangular volume from length, width and height.
Outdoor
Paver Calculator
Estimate the number of pavers needed for an area.
Decking & Fencing
Fence Picket Calculator
Estimate the number of fence pickets needed for a straight fence run.
Fence Post Calculator
Estimate the number of fence posts needed for a fence run.
Stair Riser Calculator
Estimate stair riser count from total rise and riser height.
Roofing
Roofing Squares Calculator
Calculate roofing squares from roof area.
Roofing Material Calculator
Estimate roofing material area including a waste allowance.
Practical guides
How to Calculate Concrete Volume for a Slab
Learn how to estimate concrete volume for a rectangular slab using length, width and thickness, with a practical example.
How to Calculate How Much Gravel You Need
Calculate gravel volume for driveways, paths and other rectangular areas from length, width and depth.
How to Calculate How Much Mulch You Need
Estimate mulch volume for garden beds using bed length, width and target depth.
How to Calculate Flooring Material Needed
Estimate flooring material from room dimensions and include a waste allowance for cuts and installation.
How to Calculate How Many Pavers You Need
Estimate paver quantity from the project area, paver dimensions and a waste allowance.
How to Calculate Roofing Squares
Learn how roofing squares are calculated from roof area and how to use the result for material planning.
How to Calculate Fence Posts
Estimate the number of fence posts from total fence length and planned post spacing.
Cubic Yards vs Cubic Feet: How to Convert
Understand the relationship between cubic feet and cubic yards and convert construction material volumes correctly.