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www.reference.com/math/calculate-psi-dda49bc1e391737d

The psi, or pounds per square inch, is a unit of pressure (P) using the foot-pound-second (FPS) system. To calculate psi, divide the force applied (F) with the area (A). Measure the force applied. Use an instrument such as a force gauge, spring scale or strain gauge. Make sure that the unit is in pounds. Convert the value if necessary.

sciencing.com/calculate-psi-7506069.html

Pounds per square inch (psi) is a unit of pressure most commonly associated with tire pressure for an automobile or bike tire. However, because pressure gauges are attached to most tire pumps, there's often very little need to calculate psi in this context.

www.wikihow.com/Measure-Water-Pressure

How to Measure Water Pressure. Water pressure dictates how forcefully water flows out of your faucets. Lower than average pressure reduces the flow of water in your shower, faucets, and water-based appliances, and higher than average...

sciencing.com/calculate-elevated-water-storage-tanks...

Use the rule that there are 0.433 psi per foot of water to calculate the psi of an elevated water storage tank, or alternatively, the rule that every 2.31 feet of water creates 1 psi. Use the formula: P = 0.433 × h, where h is the height of the water surface in feet and P is the pressure in psi.

www.dummies.com/education/science/physics/how-to-calculate...

Pressure and force are related, and so you can calculate one if you know the other by using the physics equation, P = F/A. Because pressure is force divided by area, its meter-kilogram-second (MKS) units are newtons per square meter, or N/m2. In the foot-pound-second (FPS) system, the units are pounds per square inch, or psi.

www.physicsforums.com/threads/how-do-i-calculate-a-pumps...

If after the pump, your pipe goes upward, The pressure on the top is less than that. Add friction too, though friction can be reduced to a small value. If the pipe goes horizontally, The psi of the end of the pipe is something between 5.0 and 6.0 psi. If the pipe goes upward, reduce 1.5 psi per meter from the value of horizontal case.

www.hunker.com/13417095/how-to-calculate-gpm-from-psi

Therefore, if flow doubles, pressure has usually had to quadruple to affect the change in a flowing system. Manufacturers of different types of piping publish flow-pressure data about their products. You can use this data to calculate GPM from pounds per square inch (PSI).

www.ni.com/en-us/innovations/white-papers/06/how-to-measure...

The SI unit for pressure is the Pascal (N/m2), but other common units of pressure include pounds per square inch (PSI), atmospheres (atm), bars, inches of mercury (in Hg), and millimeters of mercury (mm Hg). A pressure measurement can be described as either static or dynamic.

en.wikipedia.org/wiki/Pounds_per_square_inch

The pound per square inch or, more accurately, pound-force per square inch (symbol: lbf/in 2; abbreviation: psi) is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch. In SI units, 1 psi is approximately equal to 6895 N/m 2.

www.dmv.org/how-to-guides/check-tire-pressure.php

Make sure you have your manufacturer's PSI handy when you're checking your tire pressure, and then follow these steps: Remove the end caps on your tires' air valves (don't lose them!). Place the tire pressure gauge into the valve stem and press down quickly to get a reading. Check the PSI reading. Compare that to your vehicle's recommended PSI.