Know what your
project needs.
Less guesswork. Fewer trips to the store. Find the right amount of material before you build.
A concrete patio
3.26 yd³
Calculated volume with a 10% allowance
Start with your material
15 tools. One less thing to guess.
Concrete Calculator
Yards, bags & material cost
CONCRETEConcrete Slab Calculator
From slab dimensions to an order
CONCRETEConcrete Bag Calculator
Whole bags, with yield explained
CONCRETEConcrete Cost Calculator
A clearer material budget
CONCRETEGravel Calculator
Cubic yards & U.S. short tons
GRAVELDriveway Gravel Calculator
Measure each driveway layer
GRAVELRoofing Calculator
Shingles, starter, ridge cap & more
ROOFINGShingle Calculator
Buy the right number of bundles
ROOFINGRoof Pitch Calculator
Rise, angle & area multiplier
ROOFINGPaint Calculator
Surface area to paint gallons
PAINTRoom Paint Calculator
Walls, openings & ceilings
PAINTFlooring Calculator
Square feet & whole boxes
FLOORINGTile Calculator
Tile counts & box quantities
FLOORINGMulch Calculator
Garden beds, bulk yards & bags
LANDSCAPINGTopsoil Calculator
Soil volume & delivery weight
LANDSCAPINGNo calculators match. Try “concrete”, “paint” or another material.
Clear formulas and unit conversions, so every number makes sense.
Adjust waste, package sizes and prices to suit your project.
Print your quantities or share your measurements with someone else.
A little know-how goes a long way
Bagged concrete vs. ready-mix: which should you buy?
Compare total cost, bag handling and delivery access before choosing concrete for a small patio or pad.
GravelHow much gravel for a driveway?
Estimate each layer, then convert loose volume to a supplier’s delivery units.
RoofingHow many shingles do I need?
Work from roof surface area to whole bundles using the selected product’s coverage.
PaintHow much paint for a 12 × 12 room?
Wall height, openings, coats and coverage matter just as much as the floor size.
FlooringHow much extra flooring should I buy?
Build a waste allowance around the layout, then round to full boxes once.
LandscapingHow deep should mulch be?
Choose an appropriate total depth before converting your garden bed into bags or bulk yards.