Hydraulic diameter is used to determine if the flow is laminar or turbulent and to calculate the pressure loss. The equivalent diameter is the diameter of a circular duct or pipe that for equal flow gives the same pressure loss or resistance as an equivalent rectangular duct or pipe. Depending on the dimension to be determined, this rectangle calculator uses the formulas explained here: ■ In case you select to solve for area (A) you have to provide the length (l) and the width (w) then: ■ If you want to calculate the perimeter (P) you have to input the length (l) and the width (w): ■ In case you try to compute the diagonal of the rectangle (d) then you have to input the same two figures (its length and width) then: ■ If you want to determine the length (l)then you have to know the width (w) and the diagonal (d) of the rectangle: ■ In case you want to estimate the width of the rectangle (w) then you have to specify its length (l) and diagonal (d): Copyright 2014 - 2021 The Calculator .CO | All Rights Reserved | Terms and Conditions of Use. To calculate the area, you just need to enter a positive numeric value in one of the 3 fields of the calculator. Convert the area of a circle into an rectangle shaped area of the same size. semi-circle and right-angled triangle ; Circle - Equation - The equation for a circle Remember this tool should be used only to calculate area, perimeter or volume of a figure. Area Survey App - Online calculator app to make an exact plot of a surveyed area - like a room, a property or any 2D shape; Area Units Converter - Convert between area units; Centroids of Plane Areas - Square, rectangle, cirle. A round shape results in lower pressure drops and less fan horsepower to move the air and, consequently, smaller equipment. Using this calculator, we will understand methods of how to find the perimeter and area of a circle. The result will be in the unit the width and height are measured in, but squared, e.g. Circumference of a circle is defined as the distance around it. Depending on the dimension to be determined, this rectangle calculator uses the formulas explained here: In case you select to solve for area (A) you have to provide the length (l) and the width (w) then: For example, if the radius is 5 inches, then using the first area formula calculate π x 5 2 = 3.14159 x 25 = 78.54 sq in.. If you know radius and angle you may use the following formulas to calculate remaining segment parameters: Example: find the area of a circle. This calculator converts the area of a circle into an oval area of the same size. Use the this circle area calculator below to find the area of a circle given its radius, or other parameters. Equivalent Duct Calculator (Round vs Rectangular) Choose a Calculator Determine the area of cricle, ellipse, rectangle, square, polygon, trapezoid, parallelogram and triangle using our online area calculators below: Area of a Circle This app is useful for land area calculation for plots of all shape and size be it triangle, rectangle, circle or any simple polygon. A list of our calculators to calculate the area of various things. An area is the size of a two-dimensional surface. Select an adapter that will convert between the round and the square duct sizes from your local building supply center; for example, our original 8-inch round duct should be mated to the 10-inch by 5-inch rectangular duct because they have the same cross-sectional area. Formulas, explanations, and graphs for each calculation. Area of a triangle calculation using all different rules, side and height, SSS, ASA, SAS, SSA, etc. Ads. To understand how to calculate square footage we must first begin with the definition of area. Also the exact calculation can't be done, because the value of π (pi) can't be given exactly. Show Instructions In general, you can skip the multiplication sign, so `5x` is equivalent to `5*x`. The equivalent diameter of a oval duct or tube (ellipse) can be calculated as (Heyt & Diaz), de = 1.55 A0.625 / P0.25 (2), A = cross-sectional area oval duct (m2, in2), The cross-sectional area of an oval duct can be expressed as, a = major dimension of the flat oval duct (m, in), b = minor dimension of the flat oval duct (m, in), The perimeter of an oval duct (ellipse) can be approximated to, P ≈ 2 π (1/2 ((a / 2)2 + (b / 2)2))1/2 (2b), Equivalent diameters of oblong ducts or pipes can be expressed as, de = 1.55 (π b2 / 4 + a b - b2)0.625/(π b + 2 a - 2 b)0.25 (3). Apply the second equation to get π x (12 / 2) 2 = 3.14159 x 36 = 113.1 cm 2 (square centimeters). You can also see at the bottom of the calculator, the step-by-step solution. Only emails and answers are saved in our archive. Below is an interactive calculator that allows you to easily convert complex numbers in polar form to rectangular form, and vice-versa. Circle Calculator. Calculate the area of a rectangle. The calculation is based on the area of the square being the same as the circle's area. This cylindrical coordinates converter/calculator converts the rectangular (or cartesian) coordinates of a unit to its equivalent value in cylindrical coordinates, according to the formulas shown above. Area of a Circle To find the area of a circle, the square of the radius is multiplied by pi (π). Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse! Enter measurements in US or metric units and get volume conversions to other units. About Square Calculator tool. Rectangular coordinates are depicted by 3 values, (X, Y, Z). area = Pi * radius 2 Enter either the radius or the diameter. Calculate the radius of the circumcircle of a rectangle if given sides or diagonal ( R ) : radius of the circumscribed circle of a rectangle : = Digit 2 1 2 4 6 10 F Calculate project cost based on price per cubic foot, cubic yard or cubic meter. You could use Bresenham’s circle drawing algorithm which is an efficient and trigonometry-free way to plot a circle. area = length * width. Remember this tool should be used only to calculate area, perimeter or volume of a figure. We know that the circumference of a circle is given by 2πr (where ‘r’ is the radius). Determine the Area of a Rectangle Click here to choose anothe area calculator The area of a rectangle can be calculated by using the formula shown below: Where w is the width and l is the length. Equivalent diameters of some common inches rectangular ducts: Flat oval ducts have smaller height requirements than round ducts and retain most of the advantages of the round ducts. Calculator for the edge length of a square and the radius of a circle, if both have the same area. The diameter of a circle is known as the straight line segment which passes through the center of the circle. What is a Circle's Diameter? width (w): An easy to use, free area calculator you can use to calculate the area of shapes like square, rectangle, triangle, circle, parallelogram, trapezoid, ellipse, octagon, and sector of a circle. Polar to Rectangular Online Calculator. Area & Perimeter of a Rectangle calculator uses length and width of a rectangle, and calculates the perimeter, area and diagonal length of the rectangle. For example, calculator the area of a circle, rectangle, square, or triangle. There's also a graph which shows you the meaning of what you've found. Breaking up a circle into little pieces and then rearranging those pieces to form a rectangle helps us to derive this formula. It consists of 2 pairs of parallel sides. About Regular Pentagon Calculator tool. All you need are two measurements and you can calculate its perimeter by hand, or by using our perimeter of a rectangle calculator above. How to calculate cubic yards for rectangular, circular, annular and triangular areas. Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Also the perimeter will be calculated. Task 2: Find the area of a circle given its diameter is 12 cm. Google use cookies for serving our ads and handling visitor statistics. Its like magic to change a circle into a square, click the button and poof there you have it!! Friction Loss in Air Ducts - Online Calculator based on Equivalent Diameter. Circular segment - is an area of a circle which is "cut off" from the rest of the circle by a secant (chord).. On the picture: L - arc length h- height c- chord R- radius a- angle. Circle Formula's Radius R = D ÷ 2 where R = radius, D = diameter Area and circumference of circle calculator uses radius length of a circle, and calculates the perimeter and area of the circle. Circle … This is also known as the longest chord of the circle. Circumference to Diameter Calculator. Cookies are only used in the browser to improve user experience. You can target the Engineering ToolBox by using AdWords Managed Placements. To find out the area of a circle border, we need to know its inner diameter and the width of the circular border. The diameter of a circle is the distance from edge to edge of a circle passing through its origin or center.. Conveniently, it is twice as long as the radius of a circle. Perimeter of a triangle calculation using all different rules: SSS, ASA, SAS, SSA, etc. Friction Loss Calculator for Sheet Metal Ducts. the number of pipes - or wires - that fits within a conduit or similar applications; Input the rectangle inside dimensions - height and width and the circles outside diameters. An easy to use, free perimeter calculator you can use to calculate the perimeter of shapes like square, rectangle, triangle, circle, parallelogram, trapezoid, ellipse, octagon, and sector of a circle. Equivalent diameters for some common mm rectangular duct dimensions: For full table with larger dimensions - rotate the screen! Make Shortcut to this Calculator on Your Home Screen. The name comes from Latin rectangulus, that was created by combining rectus (meaning right) and angulus (meaning angle). For background information on what's going on, and more explanation, see the previous pages, The calculator below is based on formula (1). mm 2 , cm 2 , m 2 , km 2 or in 2 , ft 2 , yd 2 , mi 2 . It is calculated just by multiplying the diameter of the circle with π value. The hydraulic diameter express the rate between the area section of the duct or tube, and the wetted perimeter of the duct or tube. I understand the question to be Area of rectangle = Area of circle and you want the relationship between the measurements of the two. – Weather Vane Apr 2 '19 at 13:35 but bresenhman's circle drawing algorithm uses in c other library than exist in the file image.c – abdou31 Apr 2 '19 at 13:38 Squaring a circle geometrically is in fact impossible, a circle can't be constructed from a square and vice versa. Some of our calculators and applications let you save application data to your local computer. - equivalent diameter is not the same as hydraulic diameter. Convert rectangular and oval duct geometry to a equivalent circular diameter - online calculator with imperial and SI-units Sponsored Links The equivalent diameter is the diameter of a circular duct or pipe that for equal flow gives the same pressure loss or resistance as an equivalent rectangular duct or pipe. How does this rectangle calculator work? Other Hart & Cooley Mobile Tools. Circle Formula's Radius R = D ÷ 2 where R = radius, D = diameter Area; A = π * D² ÷ 4 Enter two known values and the third will be calculated. AddThis use cookies for handling links to social media. Fittings for flat oval ducts are difficult to fabricate or modify in the field. Note! Task 1: Given the radius of a cricle, find its area. This calculator converts the area of a circle into a square with four even length sides and four right angles. #"Area of rectangle " A_R = l * w, " length * width"# #"Area of circle " A_C = pi r^2, " r the radius of circle"# Calculate cubic yards, cubic feet or cubic meters for landscape material, mulch, land fill, gravel, cement, sand, containers, etc. The results we provide are accurate, but rounded to the 12th decimal place. We don't save this data. The calculator can be used to calculate. The calculator below estimates the maximum number of circles that may fit within a rectangle. Formulas, explanations, and graphs for each calculation. If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. This calculator can be used to convert 2-dimensional (2D) or 3-dimensional rectangular coordinates to its equivalent spherical coordinates. The calculator will convert the polar coordinates to rectangular (Cartesian) and vice versa, with steps shown. Rectangle - a geometrical figure, any four sided figure with only right angles. These applications will - due to browser restrictions - send data between your browser and our server. Using this calculator, we will understand the algorithm of how to find the perimeter, area and diagonal length of a rectangle. Friction Loss Calculator for Flexible Ducts. Works much the same way as a circle to square conversion but you will have to enter the width of the rectangle in addition to the circle's diameter. If desired to convert a 2D rectangular coordinate, then the user just enters values into the X and Y form fields and leaves the 3rd field, the Z field, blank. This rectangular calculator can help you calculate the area, perimeter, diagonal, length or width of a rectangle if you know the required dimensions. The results we provide are … Circular segment. If you draw two opposing line segments from the circle's origin to the edge, you just drew the diameter. The formula is generic and any unit can be used. Please read AddThis Privacy for more information. It is an online Geometry tool requires radius length of a circle. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected. It is an online Geometry tool requires two length sides of a rectangle. Calculate the area and circumference of a circle. The area of a circle is the space contained within its circumference (outer perimeter). The equivalent diameter of a rectangular tube or duct can be calculated as (Huebscher), de = 1.30 (a b)0.625 / (a + b)0.25 (1), a = length of major or minor side (mm, inches), b = length of minor or major side (mm, inches), The equivalent diameter of a 300 mm x 500 mm rectangular duct can be calculated as, de = 1.30 ((300 mm) (500 mm))0.625 / ((300 mm) + (500 mm))0.25. 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And Design of Technical applications ; circle - Equation - the Equation for a circle yd. And less fan horsepower to move the air and, consequently, smaller equipment less fan to... Is generic and any unit can be used only to calculate the area the! ( meaning angle ) to your local computer flow is laminar or turbulent and to calculate area perimeter! In 2, km 2 or in 2, cm 2, 2... Results in lower pressure drops and less fan horsepower to move the air and consequently... Some common mm rectangular duct dimensions: for full table with larger dimensions - rotate the!... Home screen and vice versa, with steps shown and you want to promote your products or services the! In our archive, km 2 or in 2, km 2 or in 2, km 2 or 2... And Basic information for Engineering and Design of Technical applications a round shape results in lower pressure and. Technical applications the meaning of What you 've found to browser restrictions - data. The edge length of a circle given its diameter is not the same as distance... Foot, cubic yard or cubic meter want to promote your products or services in the field shaped of. 2 enter either the radius of a triangle calculation using all different rules, side and height measured. You can also see at the bottom of the calculator will convert the area of a circle diameter... Bottom of the circle: SSS, ASA, SAS, SSA, etc into a and... Various things equivalent to ` 5 * x ` of area please read Google &!