Know what to buy, and what it will cost
63 free calculators that finish the job — quantity, purchase units, waste allowance and a price you can take to the merchant.
Concrete
All concreteLandscaping
All landscaping- Mulch calculator mulch calculator
- Gravel driveway calculator gravel calculator
- Topsoil calculator soil calculator
- Sand calculator sand calculator
- French drain calculator how much gravel for a french drain
- Firewood cord calculator how much is a cord of firewood
- Raised bed soil calculator how much soil for a raised bed
- Excavation calculator excavation calculator
- Landscape fabric calculator landscape fabric calculator
- Flagstone calculator flagstone calculator
- Pea gravel calculator pea gravel calculator
- River rock calculator rock calculator
- Sod calculator sod calculator
- Dirt calculator dirt calculator
Interior
All interior- Room materials calculator how much material to finish a room
- Paint calculator paint calculator
- Tile calculator tile calculator
- Drywall calculator drywall calculator
- Board and batten calculator board and batten spacing calculator
- Crown molding calculator how much crown molding do i need
- Drywall screw calculator how many drywall screws per sheet
- Drywall mud calculator how much joint compound per sheet of drywall
- Grout calculator how much grout do i need
- Ceiling tile calculator ceiling tile calculator
- Thinset calculator thinset calculator
- Carpet calculator carpet calculator
- Backsplash tile calculator backsplash calculator
- Insulation calculator insulation calculator
- Flooring calculator flooring calculator
Woodworking
All woodworking- Cut list optimizer cut list optimizer
- Board foot calculator board feet calculator
- Log board foot calculator how to calculate board feet in a log
- Lumber weight calculator weight of lumber calculator
- Plywood calculator how many sheets of plywood do i need
- Deck board calculator deck calculator
- Deck railing calculator deck railing calculator
Roofing
All roofingStructural
All structural- Wheelchair ramp calculator how long does a wheelchair ramp need to be
- Fence calculator fence calculator
- Brick calculator brick calculator
- Concrete block calculator block calculator
- Block fill calculator concrete calculator block fill
- Retaining wall calculator retaining wall calculator
- Deck footing calculator how many bags of concrete for a sonotube
- Fence post depth calculator how deep should a fence post be
- Wall framing calculator framing calculator
Exterior
All exteriorConversions
All conversionsNothing matches that. Try a material — concrete, gravel, tile — or the job, like deck or driveway.
How we calculate
Every figure comes from a manufacturer data sheet or a published trade standard, cited on the page that uses it. Purchase quantities always round up, because you cannot buy part of a bag. Where a material's density genuinely varies by supplier, the range is shown rather than quietly averaged.
Read the methodology