Enter real dimensions
Use the measurements you have. Switch units without redoing the math.
Home project calculators
Plan outdoor projects and room renovations with material quantities, complete purchase units, and costs you can adjust.
46 calculators across your home
Slabs, footings, posts, blocks, steps, concrete supply, and installed budgets.
12 calculatorsGravel & aggregatesPlan loose volume, rounded weight orders, paver layers, and delivered material cost.
10 calculatorsGarden & lawnEstimate mulch and soil bags, bulk deliveries, sod pallets, seed, and specified fertilizer quantities.
5 calculatorsWalls & floorsTurn room measurements into paint cans, drywall sheets, tile boxes, flooring packages, and wallpaper rolls.
2 calculatorsRoofingConvert horizontal roof dimensions and pitch into sloped area, squares, and product-specific bundle counts.
3 calculatorsDecks & lumberPlan surface boards, board-foot quantities, and stair geometry with actual dimensions and explicit limits.
3 calculatorsBrick & blockEstimate wall faces, unit modules, openings, waste, and the installed wall costs you enter.
Featured calculators
The project library
Calculate board feet from lumber dimensions, compare nominal and actual sizes, and convert linear feet with an interactive tool and worked examples.
Read the guideCompare manufacturer bundle counts, calculate shingles for your roof, and see worked examples with roof pitch, purchase allowance and whole-bundle rounding.
Read the guideConvert gravel yards to pounds and US tons with editable density, a weight table, and examples separating loose volume, compaction and supplier rounding.
Read the guideTransparent by default
Use the measurements you have. Switch units without redoing the math.
Change material allowances and enter supplier or contractor rates for your project.
See quantities and a realistic range instead of a suspiciously precise single number.