how to calculate the perimeter of a kidney shaped pool

It is best to make your measurements in feet and fractions of feet.

Kidney-shaped pools have curves and a variable width.

Example: Let’s say you have a kidney shaped swimming pool. Sketching an irregular shape on grid paper can help you calculate surface area. Repeat the measurement until you are satisfied that it is correct. With a constantly changing width and no straight edges, you might assume the math to find the area of a kidney-shaped object is highly complex, but you'd be wrong.

Hunker may earn compensation through affiliate links in this story. But a pool volume is usually measured in gallons, so to convert the cubic footage to gallons, simply multiply the cubic footage measurement by 7.48. The easiest way to approximate the surface area is by sketching the pool shape on graph paper, using a scale in which a 1/4-inch square represents 1 foot.

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The 20-foot diameter pool had a surface area of 314 square feet. A side-view sketch can help you calculate volume by dividing the pool into different sections. So a pool that has a surface area of 1,200 square feet and is 6 feet deep holds 7,200 cubic feet of water.To convert to gallons, multiply this number by 7.48. Then, take this cubic footage measurement and multiply by 7.48 to arrive at the gallon capacity of your swimming pool.Based out of Reno, Nev., Andrew Youngker has been writing since 2007. Estimating the amount of water in a pool is helpful for adding chemicals. By simply counting the number of squares occupied by the kidney shape, you can closely estimate the surface area of your pool.The essence of calculating water volume is to take the surface area and multiply it by the depth of the pool. The calculations involve three measurements and one straightforward formula.Measure the length of the pool along an imaginary line joining the opposite ends of the longest axis. However, if you already know the diameter of the pool — which is the way many above-ground swimming pools are sold — you can determine the circumference with the formula: "Circumference = pi x diameter."

For the sake of this calculation, you can use 3.14 as the value for pi. Rather than measuring the length of a pool as 30 feet 3 inches, for example, measure it as 30.25 feet.The perimeter of your pool (or the circumference, if your pool is perfectly round) is a measurement that does not have many uses all by itself, but it may be helpful when you're making other calculations.

Calculate the volume of a kidney shaped pool, includes surface area square metres and the perimeter of the pool. If this pool is 4 feet deep, the volume would be 1,256 cubic feet.To convert this measurement to gallons, multiply by 7.48.

Divide the surface area by 0.45 times the length of the pool. This works well for small pools decorated with large tiles.You will need to know the surface area before you can calculate the pool volume—an essential figure if you want to refill the pond, heat the water or add chemicals.Beware of falling forward when bending to take measurements at the edge of a pool. He writes articles for various websites, covering cooking and education.

This is what the formula would look like: 0.45 x (20+10) x 40 x 8 x 7.5 = 32,400 gallons of water. If the answer is not the combined widths of the pool, there was an error in your calculations. The first section has a circumference of 20 Ft and the smaller section is 10 Ft.

With a pool that is kidney shaped or another irregular shape, the method is much the same: Take the estimated surface area and multiply by the depth.

Youngker is pursuing a Bachelor of Science in biology from the University of Nevada, Reno.

The perimeter is easy to measure with an ordinary tape measure.With a square or rectangular pool, you can, of course, measure each of the four sides and add the measurements together to determine the complete perimeter, though what is really necessary is to measure only one side of square pool, then multiply by 4.With a rectangular pool, you can measure one short side, then multiply times 2; then measure the long side and multiply times 2 — and then add these measurements together to determine the complete perimeter.For example, a rectangular pool that is 20 feet on one side and 40 feet on the other side could have its perimeter calculated like as: (20 x 2) + (40 x 2) = 120 feet.A round swimming pool can also be measured by laying a tape measure around the outside edge of the pool.

Includes results for the pool surface square footage and a reasonable close perimeter measurement.

Other means of calculating the perimeter of an irregular pool are complicated.Surface area is an important measurement that comes into play when you want to calculate water volume, or when buying a swimming pool cover.