Every material.
Every project.
Exactly right.
Free calculators for concrete, gravel, mulch, paint, tile, flooring and drywall. Enter your measurements and get a clear material estimate in seconds.
Find the right calculator
Visual tool library — pick a material, enter dimensions, get your estimate.
Most popularConcrete Calculator
Volume in yards, bags and cost for slabs, patios and footings.
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MeasureSquare Footage Calculator
Room area in ft², m² and yd² from simple dimensions.
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OutdoorGravel Calculator
Aggregate volume and tonnage for paths and driveways.
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OutdoorMulch Calculator
Mulch volume, coverage and bag count for garden beds.
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InteriorPaint Calculator
Gallons needed for walls, ceilings and multiple coats.
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FlooringTile & Flooring Calculator
Tiles, planks and boxes with waste allowance built in.
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WallsDrywall Calculator
Sheet counts for walls and ceilings, minus openings.
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ToolsUnit Conversion Tools
Convert feet, meters, inches, yards and more instantly.
Open calculator →See the measurements.
Understand the result.
Every calculator pairs clear inputs with a live technical diagram, a full result breakdown and practical ordering notes — no guesswork, no black box.
Try the Concrete CalculatorHelpful guides
Understand the measurements behind your estimates.
How to measure a room
Which dimensions to record before calculating area or materials.
Read guide → Material planningUnderstanding waste allowance
Why cuts, layout and site conditions change your quantities.
Read guide → Units explainedCubic feet vs. cubic yards
A simple explanation of the volume units in your estimates.
Read guide →Frequently asked questions
Are these calculators really free?
Yes — all 8 calculators are completely free, with no sign-up, no ads and no limits. Your numbers never leave your browser.
How accurate are the estimates?
Estimates use standard industry formulas and include adjustable waste allowances. Always confirm final quantities with your supplier before ordering.
Can I switch between feet and meters?
Yes. Each calculator has a US / metric toggle that converts your inputs and results instantly.
Do you store my measurements?
No. Everything is calculated locally in your browser — nothing is sent to a server or stored.