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Home & Construction Calculators

Estimate material requirements and surface areas accurately before buying supplies for your flooring, painting, or landscaping project.

Updated · Published

Flooring & Rooms

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Square Footage Calculator

Calculate exact room square footage by entering length and width in feet or inches, add multiple rooms, and estimate total material cost.

Square Feet = Length (ft) × Width (ft) ; Sq Yards = Sq Ft / 9Free
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Flooring Calculator

Estimate total flooring square footage, add recommended 10% cutting and installation waste, and determine the exact number of boxes to buy.

Total Sq Ft = Room Area × (1 + Waste% / 100) ; Boxes = Ceil(Total Sq Ft / Box Sq Ft)Free
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Tile Calculator

Calculate tile counts for floors, walls, and backsplashes based on tile dimensions (12x12, 12x24, subway tile) and cut waste.

Tile Count = (Area Sq Ft / Tile Area Sq Ft) × (1 + Waste% / 100)Free

Painting & Walls

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Paint Calculator

Determine exactly how many gallons or liters of paint you need for a room or exterior wall, accounting for coats, doors, and windows.

Gallons = (Total Wall Area - Openings Area) × Coats / 350 sq ftFree

Masonry & Paving

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Concrete Calculator

Calculate exact cubic yards of ready-mix concrete or pre-mixed 60lb and 80lb bags for slabs, walkways, and cylindrical post holes.

Cubic Yards = (Length ft × Width ft × Thickness in / 12) / 27Free

Landscaping & Garden

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Mulch and Gravel Calculator

Estimate cubic yards and 2 cu ft bag counts of garden mulch, crushed gravel, or topsoil for landscape beds.

Cubic Yards = (Length ft × Width ft × Depth in / 12) / 27Free

What Tools Are in the Home & Construction Calculation Suite?

Every tool in our Home & Construction cluster is designed for swift, unhindered problem solving. Whether you are browsing on a mobile phone during a shopping trip or balancing numbers on a desktop workstation, our calculators deliver instant results with step-by-step mathematical explanations.

Each home & construction calculator above shows its formula, a worked example with real numbers, and answers to frequently asked questions, so you can verify every result by hand.