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The volume of a pipe is found by multiplying pi by the height by the radius squared. This is the common equation for a cylinder.


There are online calculators to find the volume of a pipe on nCalculators.com and HandyMath.com, as of 2015. Both websites display the volume of a pipe in different units of measurement.


Good pipe flow calculators include an orifice flow calculator, an air flow calculator and a compressible gas flow calculator. Two of these calculators measure how well the substance inside the pipe flows through it, and the other determines where the measurement is taken.


To calculate the flow rate in a cylindrical pipe, the basic formula, which is flow rate is equivalent to pipe cross-sectional area multiplied by velocity, can be used. Here the area is calculated as pi times pipe diameter squared and divided by four.


To calculate the volume of any space, measure the length, width and height of the room. Multiply the length by the width and then by the height. Measuring the volume of non-rectangular rooms is a bit more complicated, requiring the division of the room into measurable sections.


Calculate the volume of a cylinder using the formula pi x r^2 x h. You need to know the value of pi, the value of the radius of the circle at the end of the cylinder and the value of the height of the cylinder.


Use the Hazen-Williams formula calculator found on the Calctool website to calculate flow capacities for pipes. Enter the pipe's diameter, length and drop. Use the drop down menus by each category to indicate the preferred unit of measurement for length. Click the calculate button to produce the vel


The formula for calculating pipe weight is m=10.68 (do – tw) tw , where m is weight per foot (lbs/ft), do is outside diameter in inches, and tw is wall thickness in inches. The outside diameter and wall thickness of the pipe are required to calculate the weight per foot. The formula doesn’t take int


A pipe offset is calculated when a pipe is altered in both the vertical and horizontal planes of a piping system. This type of occurrence is known as a "rolling offset." Following Pythagoras' theorem, the first number, or true offset, is calculated by taking the offset squared and adding the rise sq


To calculate the water flow rate through a given pipe size, multiply the area of the inner cross-section of the pipe by the velocity of the water. The velocity of the water is required for this calculation.