10 calculators
Measure & Convert
Area, volume, feet-inches, angles, units.
Square Footage CalculatorArea of rectangles, circles, triangles and L-shapesCubic Yard CalculatorVolume for boxes and cylinders, in every unitConstruction Unit ConverterLength, area, volume and weightFeet and Inches CalculatorAdd, subtract, multiply and divide tape measurementsInch Fraction CalculatorDecimals, fractions and millimetresRight Triangle & Diagonal CalculatorHypotenuse, angles and squaring a layoutSlope & Grade CalculatorPercent grade, degrees and drop over distanceCircle & Arc CalculatorCircumference, area, arc length and radius from chordMaterial Weight CalculatorTons or tonnes from volume, and trailer checksEven Spacing CalculatorSpace posts, studs or balusters evenly with marks
Guides for this trade
Measure & Convert
Waste factors by trade: how much extra to order
A reference table of typical waste allowances for concrete, framing, sheet goods, flooring, tile, roofing and more, and when to go higher.
6 min readMeasure & ConvertMeasuring a job for an accurate takeoff
Good estimates start on site. A system for measuring rooms, walls and outdoor areas so nothing is missed and nothing is counted twice.
6 min readMeasure & ConvertImperial and metric on site: conversions every trade needs
The exact factors, the handy approximations, and the traps: US vs UK gallons, short vs metric tons, and nominal vs actual timber sizes.
5 min read