Construction & DIY · Page 5
Calculate diagonals, areas, volumes, scale ratios and slopes for plans and layouts. Mix clearly labelled length units.
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A tool can belong to several categories. All tools lists each calculator once.
Construction
Paint Calculator
Construction & DIY · Design & Drawing · ShoppingEstimate paint for a rectangular room from wall dimensions, excluded wall area, coats and entered coverage. Include the ceiling optionally and round to whole cans.
Open calculator ↗Tile Calculator
Construction & DIY · Design & Drawing · Shopping · Learning & EducationEstimate tile and pack quantities from a rectangular room and tile size. Compare an area budget with two simple grid orientations and add your own allowance.
Open calculator ↗Geometry
Height from Shadows Calculator
Learning & Education · Middle School · High School · Construction & DIYEstimate an object’s height from its shadow and a reference object measured at the same time. Mix length units and see the similar-triangle proportion.
Open calculator ↗Polygon Area from Coordinates
Learning & Education · Construction & DIY · Design & DrawingCalculate area, perimeter and area centroid from 3–50 ordered vertices of a simple polygon. Inspect an equal-scale outline and a table of edges.
Open calculator ↗Cone Frustum Calculator
Learning & Education · Construction & DIY · Design & DrawingFind a right circular cone frustum’s volume, slant height and surface areas from two radii and vertical height. Mix input units and compare volume equivalents.
Open calculator ↗Box Packing Calculator
Shopping · Construction & DIY · Design & DrawingCompare all six orientations for identical rectangular items in a rectangular container. Find the best uniform grid, counts along each axis and volume utilization.
Open calculator ↗Regular Polygon Calculator
Learning & Education · Construction & DIY · Design & DrawingFind a regular polygon’s area, perimeter, apothem, circumradius and angles from side count and length. Choose global length units and compare dimensions.
Open calculator ↗Coordinate Distance Calculator
Learning & Education · Construction & DIY · Design & DrawingEnter two Cartesian points to find their distance, midpoint, coordinate changes and direction. Choose a shared input unit and compare output lengths.
Open calculator ↗Arc Length and Sector Area Calculator
Learning & Education · Construction & DIY · Design & DrawingCalculate a circular arc, sector area and chord from radius and central angle. Mix angle and length units and view a sector diagram plus unit equivalents.
Open calculator ↗Slope Calculator
Construction & DIY · Design & Drawing · Learning & Education · Sports & FitnessFind percent grade and angle from rise and horizontal run, or solve a missing rise or run. Mix length units and inspect a labelled elevation diagram.
Open calculator ↗Mathematics
Physics
Layered Heat Conduction Calculator
Learning & Education · High School · Science & Lab · Construction & DIYCalculate steady conductive heat flow through layers in series. Inspect thermal resistance, heat flux, transferred energy and interface temperatures.
Open calculator ↗Pipe Flow Rate and Velocity Calculator
Learning & Education · High School · Science & Lab · Construction & DIYConvert volumetric flow and average speed in a full circular pipe. Calculate mass flow and the time to fill an entered volume.
Open calculator ↗Force and Friction Calculator
Learning & Education · High School · Science & Lab · Construction & DIYResolve two forces into a resultant, or check whether a block can stay at rest on an incline. Inspect components, friction limits and acceleration after slipping begins.
Open calculator ↗Pressure Converter
Learning & Education · Science & Lab · Construction & DIY · AutomotiveConvert pressure across SI and other common units. Distinguish absolute and gauge readings using a reference pressure you enter, and compare both in a unit table. Convert an optional list of readings using the same units and pressure reference.
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