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Grass Seed for a Rectangular Lawn CalculatorCalculate how much grass seed you need for a rectangular lawn from its length, width, and seeding rate. Get the amount in grams and kilograms.
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Meters to Feet and Inches CalculatorConvert meters to decimal feet and to feet plus inches, with inches rounded to the nearest 1/2, 1/4, 1/8, 1/16, 1/32 or 1/64 in lowest terms.
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Topsoil CalculatorFree topsoil calculator: find how much soil you need by volume (cubic yards, feet, meters, liters), weight in tons, number of bags and estimated cost.
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Tank Volume & Fill CalculatorCalculate total tank capacity and partial fill volume for cylinder, rectangle, oval and capsule tanks. Results in US/Imperial gallons, liters, cubic meters and feet.
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Road Base Fill Volume, Weight and Cost CalculatorEstimate road base / sub-base fill volume in cubic meters, yards and feet, plus material weight and cost, from length, width and depth with compaction and waste allowances.
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Paint Coverage and Cost CalculatorEstimate paint needed for a wall, room, ceiling, or trim in gallons or liters, subtract doors and windows, and calculate total paint cost.
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Mulch Planning CalculatorPlan your mulch project: enter bed area and depth to get cubic feet, cubic yards, bags needed, bulk yards, estimated weight and total cost. US customary units.
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Cubic Yards CalculatorCalculate cubic yards, cubic feet and cubic meters of mulch, gravel, sand or concrete for any area and depth, with optional total material cost.
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Mulch CalculatorFree mulch calculator: find cubic yards, cubic feet and cubic meters of mulch needed for any bed shape and depth, plus bag count and total cost.
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Feet and Inches Arithmetic CalculatorAdd, subtract, multiply, divide, scale, or convert lengths in feet and inches. Accepts fractions and mixed numbers; shows tape-measure fractions and decimals.
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Sandbox Sand CalculatorCalculate how much play sand you need to fill a sandbox. Enter length, width and depth to get volume, weight in pounds/tons and bag count.
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Rise Over Run to Degrees CalculatorConvert rise over run into a slope angle in degrees. Enter vertical rise and horizontal run to get the angle, percent grade, and ratio instantly.
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Pyramid Block CalculatorCalculate the total number of blocks needed to build a stepped square pyramid of n layers using the formula n(2n-1)(2n+1)/3.
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Paint CalculatorFree paint calculator: enter wall area, doors/windows, coats and coverage to find how many gallons of paint you need for any room.
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Thermal Conductivity Unit Conversion CalculatorConvert thermal conductivity between W/m·K, kW/m·K, J/cm·s, kcal/m·h, cal/cm·s, and BTU units instantly. Free, accurate physics unit converter.
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Building Coverage Ratio (Kenpeiritsu) CalculatorCalculate the building coverage ratio (kenpeiritsu), a Japan zoning measure: building footprint divided by site area, as a percent. Rounded up to 2 decimals.
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Thermal Resistance CalculatorCalculate the thermal resistance of a material layer from its thickness, thermal conductivity, and area using R = L / (k × A). Get R and conductance.
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Spindle Spacing CalculatorCalculate even gaps between spindles or balusters along a railing run. Enter run length, number of spindles, and spindle width to get exact spacing.
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Pipe Volume Calculator (By Radius & Length)Calculate pipe volume accurately with this easy-to-use pipe volume calculator. Input radius and length in various units (mm, cm, m, in, ft) for precise results.
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Wind Load CalculatorCalculate the wind load force on a structure or surface from wind speed, area, drag coefficient and air density using F = ½·ρ·v²·Cd·A.
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Chain Link Fence Cost CalculatorCalculate your chain link fence cost from length, height, gate width, and cost per square foot to get an instant total project estimate.
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Total Square Footage Calculator (Multiple Rooms)Add up the square footage of multiple rooms at once. Enter each room's length and width to get total square feet, square yards, and square meters.
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Laminate Flooring CalculatorCalculate how many boxes of laminate flooring you need. Enter room size, waste allowance and coverage per box to get exact boxes and total area.
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Gallons of Water in Pool CalculatorCalculate how many gallons of water fill your swimming pool. Enter length, width, and average depth in feet for an instant US gallon estimate.
