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Laminate Flooring Cost CalculatorEstimate the cost of laminate flooring for any room. Enter dimensions, price per square foot, waste allowance and labor to get a full material and labor estimate.
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Spray Paint Coverage CalculatorCalculate how many spray paint cans you need for any project. Enter area, coats, can coverage, and waste percentage to get an exact, rounded-up estimate.
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Stair Tread CalculatorCalculate the number of stair treads and risers, riser height, tread depth, and total run from your total rise. Free, instant staircase layout tool.
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Tile Grout CalculatorEstimate how much tile grout you need in litres and kilograms from tile size, joint width, thickness, area and grout density. Free, accurate and easy.
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Duct Size CalculatorFree duct size calculator. Find the required round duct diameter or rectangular dimensions from airflow (CFM) and air velocity (FPM) for HVAC systems.
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Pipe Wall Thickness Calculator (Barlow's Formula)Calculate minimum pipe wall thickness from internal pressure, outside diameter, and allowable stress using Barlow formula t = PD/(2S). In inches and mm.
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Wind Load Pressure CalculatorCalculate dynamic wind pressure with q = ½ρv². Enter wind speed and air density to get pressure in pascals, plus total wind force on an area.
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Two-Support Beam Reaction CalculatorCalculate support reactions R1 and R2 for a simply supported beam with a single point load using static equilibrium equations.
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Fraction to MM Conversion Chart CalculatorConvert any fractional inch to millimeters and decimal inches instantly. Enter a numerator and denominator to get mm, cm and decimal values.
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Cubic Feet Calculator (Volume & Cost for Multiple 3D Shapes)Calculate volume in cubic feet for boxes, rooms, tanks, cylinders, spheres and more. Convert to cubic inches, yards, meters, gallons, liters and total cost.
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Concrete Slab CalculatorCalculate concrete slab area and volume. Enter length, width, and thickness to get square feet, cubic feet, cubic yards, and bag estimates.
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Concrete Slab CalculatorCalculate concrete needed for a slab in cubic yards and cubic feet, plus how many 40, 50, 60 or 80 lb bags to buy. Free estimator.
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Slope / Grade CalculatorCalculate slope as a percent grade, angle of incline, slope length and ratio from rise and run. Free, instant grade calculator for any units.
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Paint Volume & Coverage CalculatorCalculate how many gallons of paint you need based on wall area, number of coats, and coverage per gallon. Free, fast paint estimator.
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Raised Garden Bed Soil CalculatorCalculate how much soil you need for a raised garden bed in cubic feet, cubic yards, and number of bags. Enter length, width, and depth.
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Fill Dirt CalculatorCalculate how much fill dirt you need in cubic yards and tons. Enter length, width and depth to estimate volume, weight and cost for your project.
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Wheelchair Ramp Slope CalculatorCalculate wheelchair ramp slope ratio, grade percent and incline angle from rise and run. Check against the US ADA 1:12 (8.33%) standard.
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Degrees to Slope Percent CalculatorConvert an angle in degrees to slope percent (grade). Enter degrees to get the percentage rise/run and the equivalent 1-in-N ratio instantly.
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Room Area Calculator (Square Feet & Square Meters)Calculate room area from length and width in feet or meters. Instantly convert between square feet and square meters for any room.
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Wall Paint Surface Area CalculatorCalculate the wall surface area of a room and the paint needed. Deducts doors and windows from the gross area to give net square feet and gallons.
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Manning's Equation Open Channel Flow CalculatorCalculate open channel flow velocity and discharge with Manning's equation using roughness, area, wetted perimeter, and slope (SI units, m³/s).
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Roofing Cost CalculatorEstimate your shingle roof replacement cost. Enter roof area, material and labor cost per square to get total material and labor pricing instantly.
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Deck Cost CalculatorEstimate the total cost to build a deck from its size, material price per sq ft, and labor rate. Get a quick materials and labor breakdown instantly.
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Concrete Cost CalculatorEstimate concrete cost by slab dimensions and price per cubic yard. Enter length, width, thickness and unit price to get volume and total cost.
