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Fence Estimate CalculatorEstimate fence material cost from length, post spacing, and panel width. Calculates posts, panels, and total cost for posts and panels instantly.
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Rivet Size CalculatorCalculate rivet diameter with Unwin's formula (d = 1.5√t) and grip length from sheet thicknesses. Fast metric rivet sizing for plates and joints.
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Metric to Inches CalculatorConvert metric length (millimeters) to inches instantly. Enter millimeters to get inches plus centimeters and meters using inches = mm / 25.4.
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Sealant CalculatorCalculate how many sealant or caulk cartridges you need from joint length, width and depth, plus coverage per cartridge and waste allowance.
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Door Header Size CalculatorCalculate the required door header beam depth and section modulus from span, uniform load, allowable bending stress, and header width.
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SAG CalculatorCalculate the midspan sag of a cable or conductor from its weight per length, span, and horizontal tension using the parabolic sag formula.
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Sunlight Hours Affected by a South-Side BuildingEstimate how a building to the south blocks your home's direct sunlight. Compute residual sunlight hours, blocked window and critical roofline angle by latitude and date.
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Price per Square Meter CalculatorCalculate price per square meter instantly. Enter total price and area in m² to get the unit rate for property, flooring, land or rent comparisons.
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Price Per Square Foot CalculatorCalculate price per square foot instantly. Enter total price and area in square feet to compare real estate, rentals, flooring, and property costs.
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Parking Ratio CalculatorCalculate parking ratio (spaces per 1,000 sq ft) for commercial buildings. Enter parking spaces and gross building area for an instant result.
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Man-Hours CalculatorCalculate total man-hours instantly by multiplying the number of workers by hours worked per worker. Free, fast labor-hour estimator for projects.
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Labor Cost CalculatorCalculate total labor cost from hourly rate, hours worked, and number of workers. Free labor cost calculator for projects, payroll, and job estimates.
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Price Per Linear Foot CalculatorCalculate price per linear foot instantly. Divide total price by total length in feet to compare fencing, lumber, molding, fabric and trim costs.
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Price per Acre CalculatorCalculate the price per acre of land instantly. Enter the total price and number of acres to find the cost per acre for any property.
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Picture Frame CalculatorCalculate the outer frame size and length of moulding needed for a picture frame, including mat border and mitre-cut allowance.
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Well Volume CalculatorCalculate the water volume in a well from its diameter and water depth. Get the result in US gallons and cubic feet instantly.
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Curtain Size CalculatorCalculate the right curtain width and length from your window size, fullness ratio, rod height, header and hem allowances. Free, instant and accurate.
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Curtain Panel CalculatorFind out how many curtain panels you need for any window. Enter window width, panel width and fullness ratio for an instant, rounded-up panel count.
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Fabric CalculatorCalculate how many yards of fabric you need from the total area and the usable fabric width. Free, fast estimator for sewing and upholstery projects.
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Rug Size CalculatorFree rug size calculator. Enter your room dimensions and desired floor border to get the ideal rug length, width, and area in feet.
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Roll Length CalculatorCalculate the length of material wound on a roll from the outer diameter, inner core diameter, and material thickness. Fast, accurate estimates.
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Cord of Wood CalculatorCalculate how many cords of firewood are in a stack from its length, height and depth in feet. One full cord equals 128 cubic feet.
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Wood Beam Span CalculatorCalculate the maximum bending moment and required section modulus for a simply supported wood beam from uniform load, span, and allowable stress.
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Inches to Fraction CalculatorConvert decimal inches to the nearest fraction (1/2 to 1/64). Free inches to fraction calculator for woodworking, machining and tape-measure readings.
