Know exactly what you need before you spend.
Free calculators for concrete, gravel, mulch, fencing, sod, paint, and more. Industry-standard formulas. No sign-up. No guesswork.
All Calculators
150+ pages of free tools across 23 categories. Pick your project.
Concrete & Masonry
Concrete Calculators
Slabs, footings, columns, walls, driveways, patios, sidewalks, steps, bags, and cost. 12 tools.
Brick Calculator
Brick count, mortar, and sand for walls, veneers, and patios. 5 brick sizes.
Rebar Calculator
Bar count, linear feet, and weight for slab and footing reinforcement. #3 through #8.
Retaining Wall Calculator
Blocks, caps, base gravel, drainage backfill, and adhesive.
Landscaping & Outdoor
Gravel Calculators
Driveways, drainage, french drains, landscaping. Tons and cubic yards. 7 tools.
Mulch Calculators
Hardwood, cedar, cypress, bark, rubber, dyed, and playground. 7 tools.
Rock Calculators
River rock, lava rock, crushed granite, marble chips. 4 tools, 8 rock types.
Soil Calculator
Raised beds, garden plots, fill dirt. Cubic yards and bags.
Topsoil Calculator
Lawn grading, leveling, and garden prep. Yards and tons.
Compost Calculator
Soil amendment, top dressing, raised bed mixes.
Sand Calculators
Play sand, paver base, mason sand, polymeric. Yards, tons, bags.
Sod Calculator
Square feet, rolls, pallets, and cost for new lawns.
Paver Calculators
Patios, walkways, driveways. Paver count, base gravel, and sand.
Fencing & Decking
Fence Calculators
Wood, vinyl, chain link, aluminum, split rail. Posts, cost, stain, depth. 9 tools.
Deck Calculators
Materials, boards, stairs, joists, railing, composite, and cost. 7 tools.
Pool Calculators
Pool volume, hot tub, and pond gallons for chemical dosing and pump sizing.
Interior & Finishing
Paint Calculators
Walls, ceilings, exterior, rooms. Gallons with coats. 4 tools.
Tile Calculators
Floors, backsplashes, showers. Tile count, boxes, and waste. 4 tools.
Flooring Calculator
Hardwood, laminate, vinyl plank, engineered, bamboo. Boxes and cost.
Carpet Calculator
Square yards, roll length, padding, and cost estimate.
Drywall Calculator
Sheets, joint tape, mud, and screws for walls and ceilings.
Insulation Calculator
Batts and rolls by R-value. Walls, attics, and crawl spaces. R-11 to R-49.
Wallpaper Calculator
Single and double rolls with pattern repeat. Accent walls and full rooms.
Roofing & Paving
Roofing Calculators
Shingles, metal roof, cost, and roof area. Squares, bundles, and pitch. 4 tools.
Asphalt Calculator
Tons and cost for driveways, parking areas, and paths.
Lumber & Conversions
Built for the trip to the hardware store. Not the textbook.
Every calculator on this site uses the same formulas contractors use. No sign-up, no account, no nonsense. Enter your dimensions, get your number, go buy the right amount.