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Pallet Configurator CalculatorCalculate how many boxes fit on a pallet. Enter pallet and box dimensions plus max stack height to get boxes per layer, layers, and total boxes.
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Rock Weight CalculatorEstimate the weight of a rock or boulder from its size and rock type. Get results in pounds, US tons, and kilograms for granite, basalt, limestone and more.
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Hip Roof Shingle CalculatorEstimate shingle bundles and roofing squares for a hip roof from building length, width, pitch, and waste factor. Fast, accurate material planning.
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Fence Post Spacing CalculatorCalculate how many fence posts you need, the number of panels, and the exact even spacing between posts for any fence length.
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Tile Calculator (Square Meters)Free tile calculator in square meters. Enter room and tile sizes plus waste % to find total area and the number of tiles you need to buy.
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Post and Rail Fence CalculatorCalculate posts, sections, and rails needed for a post and rail fence. Enter fence length, post spacing, and rails per section for instant materials.
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Pallet CalculatorFree pallet calculator: find how many boxes fit per layer and per pallet from box and pallet dimensions, max stack height, layers and deck utilization.
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Deck Stair Stringer CalculatorCalculate deck stair stringers: number of risers, actual riser height, total run, stringer cut length and stair angle from your total rise.
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Sod Cost CalculatorEstimate the cost of sod for your lawn. Enter area dimensions, price per square foot, waste overage, and optional labor to get a total install estimate.
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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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Aircraft Weight and Balance CalculatorCalculate aircraft total weight, total moment, and center of gravity (CG) from empty weight plus pilot, passengers, fuel, and baggage stations.
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Tire Size Comparison CalculatorCompare two tire sizes (width/aspect/rim). Get overall diameter, sidewall height, revolutions per mile, % difference and speedometer error.
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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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Antifreeze Mixture CalculatorCalculate the final antifreeze (coolant) concentration percent by volume from your antifreeze and water amounts. Free, instant mixture ratio tool.
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Potential Alcohol CalculatorEstimate potential alcohol (% ABV) from your wine or must reading. Enter specific gravity or Brix to predict the final ABV if fermented to dry.
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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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Valve Kv Flow Coefficient CalculatorCalculate the valve flow coefficient Kv (metric) from flow rate, specific gravity and pressure drop. Get equivalent Cv too. Free engineering tool.
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EV kWh per 100 km CalculatorCalculate your electric vehicle energy consumption in kWh per 100 km from the energy used and distance driven. Get km/kWh and Wh/km too.
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EV vs Gas Cost per Mile CalculatorCompare the cost per mile of driving an electric vehicle versus a gas car. Enter kWh/mile, electricity price, gas price, and MPG to see your savings.
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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.
