Construction Calculators
Whether you are a professional contractor pricing a bid or a homeowner planning a weekend project, construction math can make or break your budget. Order too much concrete and you pay for material that gets dumped. Order too little and you risk a cold joint that weakens the entire pour. Our construction calculators take the guesswork out of material estimation for concrete, gravel, lumber, roofing, drywall, and more. Each tool uses industry-standard formulas with waste factors built in, so your estimates reflect real-world conditions — not textbook perfection. From slab pours and rebar layouts to roofing squares and brick counts, these calculators help you order the right amount the first time and keep your project on budget.
115 calculators available
Concrete Block Fill Calculator — Estimate Fill Volume
Calculate how much concrete you need to fill concrete masonry unit blocks. Get cubic yards, cubic feet, and bag estimates for any block wall project.
Concrete Column Calculator — Estimate Volume & Bags
Calculate concrete volume in cubic yards and 80lb bags for round columns, posts, and piers. Fast, accurate, with waste factor.
Concrete Cylinder Calculator — Volume & Bag Yield
Calculate concrete volume in cubic yards and estimate bag count for cylindrical pours like sonotubes, round columns, and post holes.
Concrete Driveway Cost Calculator — Price Per Sq Ft
Estimate your concrete driveway cost by size, thickness, and material prices. Get cubic yards, total price, and cost per square foot instantly.
Concrete Slab Calculator — Volume & Cost Estimate
Calculate how much concrete you need for your slab project. Estimate volume in cubic yards and total cost based on size, thickness, and price per yard.
Concrete Stairs Calculator — Volume & Material Needs
Calculate concrete volume for stairs, steps, and stoops. Get cubic yards, bags needed, and material costs for poured concrete stairways.
Concrete Tube Calculator — Volume & Bag Estimate
Calculate concrete volume for tube forms like Sonotubes. Get cubic yards, cubic feet, and bag counts for deck piers, fence posts, and more.
Concrete Weight Calculator — Estimate Slab & Structure Load
Calculate the weight of concrete for any slab, column, footing, or structure. Enter dimensions and density to get total weight in pounds and tons.
Conversion Calculator — Convert Units for Construction
Convert between feet, meters, inches, centimeters, square feet, cubic yards, pounds, kilograms, and temperature units for construction and DIY projects.
Cubic Yard Calculator — Material Volume & Cost
Calculate cubic yards for concrete, gravel, mulch, and fill. Enter length, width, and depth to get volume and material cost.
Door Header Size Calculator — Span & Lumber Pick
Calculate the right door header size based on opening width, wall load, and lumber species. Get section modulus and lumber recommendations fast.
Drywall Calculator — Sheets, Screws & Tape Estimator
Calculate how many sheets of drywall you need. Estimate sheets, screws, joint compound, and tape for any room including walls and ceiling.
Elevation Grade Calculator — Slope, Angle & Grade %
Calculate elevation grade percentage, slope angle, and ratio from rise and run. Free grade calculator for construction, surveying, and site work.
EUI Calculator — Building Energy Use Intensity
Calculate Energy Use Intensity (EUI) in kBtu per square foot per year. Compare your building's energy efficiency against industry benchmarks.
Excavation Calculator — Volume & Truck Loads
Calculate excavation volume in cubic yards and estimate truck loads. Determine how much soil to remove and hauling cost for foundations, pools, and trenches.
Feet and Inches Calculator — Convert ft/in to Decimal
Convert feet and inches to decimal feet, meters, centimeters, or yards. Add fractional inches for precise construction measurements.
Fence Calculator — Posts, Pickets & Cost Estimate
Calculate fence materials including posts, rails, pickets, and concrete. Get a complete material list and cost estimate for your fence project.
Fence Cost Calculator — Estimate Your Fencing Budget
Calculate your total fence project cost including materials, labor, gates, demolition, and permits. Get an accurate budget estimate in seconds.